Here in Aus that price would be about right, even a little high!
A500's go for about AU$20 or $5-$10 if you find them in a Good-Sammy's.
A600's not much more, certainly less than $100, probably a bit more for an expanded one?
I sold my A1200 for $140 (105USD / 59Pounds) with a bunch of stuff thrown in for free.
We dont have the population to sustain even a very small Amiga enthusiast group to keep the prices up.
