[danby]

Most amigas users are using some kind of solid state storage these days which will ameliorate this a little. But many/most are using assorted expansion and accelerator cards which can substantially increase the power draw.

It's a bit if a moveable feast how much power an amiga is drawing these days. Certainly, back in the 90s, the original a1200 power supplies often needed to be replaced with something that could deliver more, and the a500 supplies were favoured

[bluescrn]

Many Amigas also have a Raspberry Pi inside them these days, for the PiStorm accelerator, which increases the +5V current requirements a fair bit.

[danby]

Is the pi usually on it's own power supply?

[bluescrn]

Not with the PiStorm32 Lite that I've got.

Seemed to run OK with a Pi 4 on an original Commodore PSU, or at least nothing appears to have blown up or melted when running it for short periods.

Maybe I'm pushing my luck, but then again, back in the day, you'd often be running an accelerator board, hard drive, and a couple of floppy drives from that same PSU, so maybe it's up to the job.