Serial numbered cards. Error variations. Blank backs. Buybacks. Whatever the form, there are tons of cards in the hobby that gain enhanced value (or gain any value at all) for slight variations from the original. Some people love them, others hate them, most of both sides see them as the cash grab they are regardless, and so it really depends on the kind of collector you are as to whether you chase these things or not. I, a sucker, chase them pretty much every time.
One thing that bugs a lot of people are the last mentioned buyback cards, where companies take old cards no one wants and do something to them to make them marketable. Add an autograph...add some numbering...add a stamp. Conventions do this sometimes too, where they'll take blah cards and add stamps to make them unique, marketable, scarce. And it works, since I bought this card.
See, Corey Alson has no true 1/1's to his name. He doesn't even have 15 cards listed in Beckett. So when I saw a card stamped 1/1 on Ebay, I was both skeptical and I needed to have it. A few problems though...I wasn't sure if the stamp was legit, and it was $10 from Burbank Sportscards, so it wasn't a cheap mistake if the stamp wasn't legit.
Well I got the card, so here's the front so you call can see it. I'll explain how it's legit after.
So in the end, the National made a little extra money, whoever sold these cards to Burbank made money, and then Burbank made money, all so I could have the only "true" Corey Alston 1/1 in the world. Feels kind of good to be the #1 Corey Alston collector as a result. In fact, to all other Corey Alston collectors I will now say: