Tell me about it. I've recently been outbid too many times to count. I really want the game but I don't think it's so rare that it warrants the going rate just now. Hopefully, it'll come down in price at some point.
I do love the game though. I have it on my GBA emulated through SMSAdvance and I play it all the time. A true stone cold classic. I don't think there's anything I would change in the game. That's a rare thing indeed.