Maybe if all the people hoarding like 10-20 classic Amigas would start letting them go at reasonable prices, then this guy could find one. Oh well, pipe dream I know! Good luck, and keep checking ebay, Amibay, etc. 
That's a point of view. Here is another. Even this web site is crawling with folks who, for various reasons, can't be trusted with the dwindling supply of classic hardware. There are some who pitched their Amigas and now advocate emulation as a better solution. There are the guys who have mood swings, purge their Amigas, get nostalgic after a few years and then repeat the process. There are a few (baffling to me) that had one years ago, seem to hate it now, but log in here and advise against the platform. We've all seem ppl threatening to "bin" their collection unless someone drives over and picks it up in some time frame.
There are still unrescued Amigas to be found from various sources, although, less than just a few years ago.
It's only been 28 years since the Amiga's introduction. How many were made and how many are left?
What will the situation look like in 10 more years? In 20?
I don't consider myself a hoarder. I hope I have rescued enough Amigas (some from destruction!) to preserve working examples far into the future.
@ Sir Bacharach - There are some very good threads here detailing ways to clean-up and preserve your hardware! It's worth doing if it is worth owning one.
