1. They either want ebay prices without ebays hassles (nonpaying bidders,ebay fees)
or
2. MORE than what they can expect to get on ebay.
Sellers can ask for whatever they want. I've just had some experiences with people who I hooked up big time just to get the cold shoulder over a couple of bucks. Not like I've ever been afraid to pay top dollar in the first place. I gave away alot of stuff for free. ALOT. Multiple sealed copies of Cheeahmen II , Combat 2 for 2600 (well they had to write an essay for this one),prototypes etc all free and they all line up for that but ask for $25 off what they consider the going rate on a $325 game and they won't even consider it.
I can agree with that. The question I always have to ask is, "If you wanted to sell it on ebay for ebay dollars, why the heck are you wasting our time and space by advertising it here?"