Not everything is worth a lot of money. Some people think that just because it is a number 1 or whatever it should be worth some coin. The fact is what makes it worth money is how desirable it is. Of course all those stupid reality shows don't help the situation where someone sells a paper cup for $100k, now people think that all paper cups are worth that - hey, extreme example.

But speaking of comics, I have a reprint of the Superman #1 (actually Action Comics) - but I seriously doubt that the release of this affected the price of the original at all.

Hockey cards are another, some cards are worth more than others, take say an original Wayne Gretzky rookie card vs a reprint...

Could go one about knowing people that have massive collections of items, of which is mostly worthless except for a few 'gems' in it....