It's the age old grumble of collectors from any hobby and one I can relate to.
I don't like flipping when it's taking advantage of places like this: you see something cheap and snap it up simply to make a profit on it. Forums like this are there for the collector, not the dealer....
....speaking of which.: flipping is exactly what dealers do. We have no problem with them doing it so why the individual? Dealers are a vital part of any hobby. They search out childhood collections and bring fresh products to the market. They also buy low and sell high. If this guy wants to do the same and use the profit to buy a grail item or put the funds towards a car, why does it bother us?
That's my devil's advocate role out of the way. What I really think is this: he found a bargain on ebay, he snapped it up and has tripled the price whilst re-advertising in the same place he bought it. Whether it sells or not we will see. Yes, it would have been much, much better off in a collector's hands and preferably mine at that! Is he taking the piss with the price or has the original reseller missed out by not sticking up a valuation thread somewhere or listing is on auction and properly describing it? We'll have to see.
All in all it leaves a sour taste in the mouth but that's because we care about the hobby. I buy and sell stuff that I like all the time (Lego, board games, old toys, collectibles, comics, etc.) If I like an item and I see a profit I'll buy it and sell it. Sometimes I end up keeping it, but my usual car boot sale finds are for resale. As much as I like the things I buy I don't collect them. Does that make me a flipper, a dealer or an opportunist. I reckon it'll be one answer to anyone outside of the respective hobby and a different answer to those that collect.