Well, the bottom line is…collectibles are worth what someone is willing to pay for them. You can have a very valuable comic, but if no one wants it, then it’s worth nothing. You might as well frame it, put it on a wall, to impress your friends, because that’s the only value you are ever going to get from it.
There are two things that make a comic valuable, the first is someone wanting it, the second is someone willing to pay for it. Once you find someone who wants your expensive comic then it’s a process of negotiating the price that person is willing to pay. And the price that person is willing to pay might not even be close to the price you are expecting. So your $2000 comic might only be worth to that person $500. Sure you could hold out for another buyer, but then you might never get another buyer. Which means your comic is now worth nothing. You could auction the comic off, and maybe you’ll get your asking price, but then again, you might not even get the $500 you were offered for it. CGC slabs are the worst investment because you end up paying top dollar and the payoff is you now own a comic that is only worth what you paid for it with little room for resale. You’re better off getting lucky at a yard sale, buying something on the cheap, that has lots of potential for profit.
The bottom line is…collectibles are worth what someone is willing to pay for them.