Agreed! I rented it and it's pretty good, but I'm waiting for the price drop as well. It's a rather long game so I'm returning it to game to get more that I can complete in a couple days rather than weeks. It's a really cool game though, one that I'd rather own and play at my own pace.
I am surprised at the increased price as well. My brother and I rented this game at a local Blockbuster when they were still around back in 2010 and thought the game was alright but not amazing, and wanted to play again sometime in the future since I had to return it. Who would have known that 3 years later it would still be $30 or more? I expected it would have a crazy price drop in the coming months after its release like every other game seems to go through and snag a copy up then. Guess I should have bought it sooner before it became rare :/
This topic is a bit old now, but if anyone hasn't looked at the game in a while, it has gotten cheaper due to a Deep Silver reprint. It has been low-to-high-$20's for a couple months now; I bought it at the beginning of August I think? Still need to get around to playing it though...
If having the THQ logo on it rather than the Deep Silver logo is important to you, the reprint might have driven prices down on eBay. I can't say for certain though, because I haven't checked the prices on eBay since getting my copy here.