eBay is not always bad. I have goten many items at a great price somtime less then half of what you pay in the store. Electronics in particular can be a great deal.
Amiga owners seem to be an exception to this rule I have seen Amiga items go for twice what they should be and I remember the Guy in Calgary Canada selling a top of the line eccelorator fully loaded for $1500 I dont think he sold it but :-o.