Yeah I agree, at current prices especially used these machines are a killer deal. I believe that the M1 Mac mini will go down in history as one of the all-time greatest computers of all time, alongside the Apple II and Commodore 64.
Apple sees the Mac as their biggest growth vector right now (it's unclear if AppleTV will ever turn a profit for example, and everybody that wants an iPhone has one, meanwhile Mac marketshare in the US is around 9%) - that means they are putting out incredible products in the Mac lineup. We all benefit.