I've spent the last few days reading up on computer components, as I have to replace this one soon, and trying to weigh up all the options, including the thermal output of the CPU/GPU (and adequate cooling), the speed of throughput that I may require to get me through five years of potential work demands, and the ultimate cost of purchasing and running it all is frankly exhausting. I can technically 'forget all about it' once it's arrived, but getting it right now is critical.
There's not many other things I buy that involve this much thought, but it's been a significant chunk of my life spent working on one sort or another, starting on a Commodore Amiga in 1988, though never Apple. There was a wonderful couple of years when I was able to get the Amiga to pretend to be a Mac to output my work digitally to the layout company, thanks to a clever expansion card from the US, but Apple were never happy about that sort of thing. Happy days. It's a good job I don't drive, or I'd never go anywhere.