Thats the way I buy, if something looks pretty on eBay, buy it. If you Don't like it, sell it!
You can get some nice kit like that (my Rotel amps, which i will shortly be making a shrine too) or some AWFUL kit; My Acoustic Research CD06.
I got stuck with that CD player for 6months, on a blind test i could not tell it apart from my PC cd player. but as I sold it for a £60 profit, I'm happy =-)