Rent or buy? The economics of a Mac Studio by the day

If you want to run large language models on your own hardware, a Mac Studio with lots of unified memory is one of the simplest ways to do it. It's also one of the more expensive computers on a desk. Before buying one, it's worth asking how many days you'll actually use it — and what those days would cost if you rented instead.

This post does the arithmetic, with every assumption spelled out so you can swap in your own numbers.

The two prices#

Buying. Apple's prices vary by configuration, country and time, so check the Apple Store for today's figure. For round numbers, we'll assume a Mac Studio with an M5 Max, 128 GB of unified memory and a 1 TB SSD costs about €4,000 including VAT.

Renting. A dedicated Mac Studio M5 Max with 128 GB on GpuToLease.ai costs €20 a day (£20 or $20 depending on where you are), excluding VAT, paid only for the days you book.

The simple break-even#

The headline number divides one by the other:

€4,000 ÷ €20 per day = 200 days

If you'd use the machine for fewer than 200 days in total over its life, renting is cheaper — before counting anything else.

VAT deserves a note. Our prices exclude VAT, and it's added only where it applies (currently Ireland, at 23%, making €24.60 a day there). A VAT-registered business usually reclaims VAT on both options, so it should compare ex-VAT prices: about €3,250 for the machine against €20 a day, or roughly 163 days. A private buyer compares €4,000 against the price they actually pay.

The costs people forget#

Owning a machine costs more than its sticker price, and a little of it comes back at the end.

Change any line to suit you. Your hourly rate, how much the machine idles and your electricity tariff all move the result. But notice the shape: resale value helps, while electricity and your own time quietly add up. Over three years this example costs about €1,580 a year.

At €20 a day, €1,580 a year buys about 79 days of renting a year. That's the more honest break-even:

• If you'd use a 128 GB Mac Studio fewer than about 80 days a year, renting costs less.
• If you'd use it most working days, buying wins clearly.
• In between, it depends on the things that aren't money — covered below.

When renting makes more sense#

Evaluating before you buy#

The most common reason to rent is to find out whether you should buy at all. Does your model fit with the context length you need? Is 10 tokens per second on a 70B model fast enough for your workflow, or do you need an M5 Ultra's bandwidth? Is 4-bit quantisation good enough for your task? A few days on the exact hardware answers these questions for the price of a dinner, and saves an expensive mistake either way.

Bursts of work#

Many projects need a big machine for a week, then nothing for a month: evaluating a batch of models, running a benchmark suite, generating a synthetic dataset, fine-tuning an adapter with MLX. Buying for a burst means paying for all the idle weeks in between.

Demos and workshops#

Showing a local model to a client or running a workshop needs a reliable, powerful machine on a specific day. Renting one for that day beats carrying a desktop computer around, and every attendee can reach it over SSH.

Trying the bigger configuration#

Even if you own a Mac, you may occasionally need more memory than it has — a 70B model at 8-bit, or a long context. Renting the big configuration for those days is far cheaper than upgrading the whole machine for them.

Keeping your own machine free#

A long job ties up whatever runs it. Sending it to a rented machine keeps your own computer usable, and a dedicated machine means no noisy neighbours: it isn't shared with anyone during your reservation.

When buying makes more sense#

• Daily, heavy use. If the machine would be busy most days, the break-even arrives quickly.
• You need things to persist. Rented machines are wiped at the end of every reservation, with no backups. That's a privacy feature, but it means re-downloading models each time (a startup script automates it).
• You need the desktop. Our machines are reached over SSH. If your work involves macOS apps with a graphical interface, you want one on your desk.
• Data that mustn't leave your premises. Some data can't be copied to any third-party machine, however well it's wiped afterwards.

A hybrid that works well#

Plenty of people do both: a modest Mac for everyday development, and a rented 128 GB or larger machine for the days that need it. The everyday machine handles editing, small models and tests; the big jobs go out by the day.

Run your own numbers#

Four figures decide it: the purchase price, the resale value you expect, what your time is worth, and — most of all — how many days a year you'd really use the machine. Be honest about the last one: most hardware bought for "constant use" spends a lot of its life idle.

If you're unsure, rent first. A few days on a dedicated M5 Max will tell you whether 128 GB is enough, whether you'd use it daily, and whether you should be looking at the M5 Ultra instead. Then decide with real numbers.