Of course I wouldn't sell it for $30. I also wouldn't ask $3000 like any of the pawn shops around me would.
Of course you wouldn't sell it for $30??? Why not? It didn't cost you anything. That would be $30 in your pocket, easy money, and a win-win for everybody, right? Surely, you are not implying a double standard, are you?
Why do you think the pawn shop should do that if you won't do it? The answer in simple. You want to pay as little as possible and maximize your profit when you sell. That is sort of a base line of how business works.
As for asking prices, pawn shops and other businesses just like you can ask what they want. You don't have to pay it if you don't want to. Eventually, the products will sell. Somebody haggler will come in and work a deal.
I always find it amusing when people think pawn shops should sell items based on what they paid for them by people who would not engage in the same practice themselves and never take into consideration the who concept of what it takes to run a business.
If this economic situation is like those of the past, the pawn shops will be have some good deals on merchandise in the future. They are going to be inventory heavy and comparatively cash poor by the time this comes to an end. However, they won't be giving stuff away either. Various types of merchandise hold their values better than others.