It is not just whether you can afford buying amiga parts, but also if also if you can justify buying amiga parts. When I first came here I was all crazy about the Amiga and childhood memories made it easy for me to spend quite a good amount of money to get my A500+ up and running again. However today I can't justify buying an accelerator card for my A500+ at around 200EUR to 300EUR when with the same amount of money I can buy a new motherboard god knows how many times more powerful then the A500+ with that accelerator card. I do not mean this as a bad thing. Just want to make my point that justification is sometimes more troublesome then affordability.
