I know you think you're being clever, finding the MINT copy of AVENGERS #6 that will someday buy you a Rolls Royce, but history has other things to say. You can bag and board that motherfucker, and file it right alongside X-MEN #1 and the Death of Superman. Give them twenty years, and you'll have the world's only poly-bagged toilet paper collection.
What is this game we play? In every comic store I've ever walked in, I see you there. You have a stack of forty books in your paws, and you're inspecting the edges and spines of these comics like Hercule Poirot looking for clues. I have sad news for you; if, by some Totally Bizarre Twist if Fate, one of the books that came out last week actually manages to become rare and a huge audience of collectors actually start demanding it, the minute and improbably tiny crease under the top staple will not matter in the least.
It's a hard path to travel. Once you start looking for tiny imperfections in something as inconsequential as a comic book, what comes next? Do the big problems in life become so massive that they vanish, or do they overwhelm you, like that episode of the Twilight Zone where the astronaut finds a tiny civilization and becomes crazed with power, only to later get killed by even larger astronauts? Do you start looking for tiny imperfections in everything you buy, like hamburgers or bags of chips? What happens when you finally pick out the perfect copy of HOUSE OF M FANTASTIC FOUR, and then someone bumps you on the train, or the humidity wrinkles it, or a dog shits on it? At that point does your whole world view crumble?
I also wonder about your priorities. Does reading the book even enter into it? You spend more time in the comic shop that anyone else, but I don't think you even care what happens in these shitty books. It's all about inspecting the spines and staples. That's pretty depressing. If I dwell on it too long, I get really tired and lonesome.
In short, you're spending a lot of time trying to find books that will someday be worth a lot of money, and such a thing doesn't exist. And if it does, whatever the WIZARD "Hot Pick" is that week ain't it. Also, you look like a total fucking loser.