For giggles, I just searched for "Amiga 500, A500, 2000, & A2000" on eBay. It seems that there are fewer whole computers on offer compared to a few years ago. There were various parts (chips, drives, keyboards, etc), a few accelerators, expansions, and a few 1080 series monitors.
The prices are higher, not just Amiga stuff, but, everything! eBay has become a "buyer beware" bazaar (Try a search for Betamax.

). It seems there are many sellars now who are asking outrageous prices and hoping for that one fool who is unaware of an items real value. Some items keep getting re-listed for months at astronomical prices.
Another surprise for me are the old green phosphor monitors (I need a replacement for an IBM 5150, & another for an Hp-86), you couldn't give them away. Now 20 years after the last one was made, they go for hundreds of $$$.