It seems that everyone hears something "bad" about Ebay and nobody ever hears anything good. The guys at the hobby shop and golf course where I work part time continually bad mouth the bay. Reason being, of course, that they can't compete price or tax wise and try to discourage folks from looking.
A few weeks ago I was hitting a new Taylor Made V steel 3 wood on the range and the head pro comes over to take a look and try it. He asked where I got it "Ebay". How much "$82 new in wrap, no sales tax" He shakes his head mentioning that his cost is way over that and goes into the usual E bay rant(bunch of crooks, will lose your money, etc.)
I have made a bunch of money selling stuff I would not use and a lot of satisfaction in purchasing items that are difficult to find and feel I have usually gotten a bargan. I guess I am at a thousand transactions, more selling than buying. I have never, repeat, never been totally taken and the few(count them on one hand)transactions that were somewhat less than they should have been are offset by several magnitudes by the satisfying/profitable transactions I have enjoyed. I have recently begun venturing into Ebay vehicles which looks like a possible gold mine. Hobby shop owners and golf course pros are usually helpful, knowledgeable guys trying to stay in business but if you really want to get screwed in every orifice go to your local car dealer.
I seem to recall that "coachman" is one of the most reputable sellers of modeling items. All of his items I have seen appear to be quality items correctly described. I bought one engine a couple of years ago from him and was pleased.
BTW-if you want something to fly, there's lots of stuff out there better than Sterling kits.