I also think that pin prices are a little crazy right now, but when I analyze my feelings more closely, I realize they don't really make sense. Here's what I mean.
If you LIKE high prices, then you are either
A) a person already established in the hobby whose collection is complete, or
B) a person established in the hobby who wants to add more to their collection but can simply sell one ( or two ) of their nicely inflated pins to fund it.
If you DON'T LIKE high prices, then you are either
A) a person who is relatively new to the hobby or
B) a person who would like to add more pins to his/her collection but doesn't want to sell any pins in order to do so.
If you "don't like" high prices, then your only shot at a legitimate beef might be that high prices do not allow us to expand a collection as quickly as we would like. But these people would need to be reminded that they are only "parking" their money for a while, and they will more than likely get their money back ( and more ) when the day comes ( I mean, we are all planning on dying some day, aren't we ) ?
Some people might argue that the problem is that today's high prices make the hobby a more risky venture since a price correction could come at a very inopportune time for someone trying to downsize their collection. Although there is some truth to this, I would argue that "risk" isn't a valid concept in this, or any other hobby.
Complaining about consumable items or things that quickly deflate in value is understandable ( think computers, cars, furniture, food, etc. ) but complaining about the high price of something like pinball just doesn\t make sense if you look at it more closely.