Hell I'd spend $50 on the full package with level editor/portal. Its one of the best games I've played in years.
Agreed. It's a shame the steam forums were full of trolls crying each and every single time the price changed; usually demanding their money back in the process. This game is well over its price tag since most 10 dollar indie games take a few hours tops to beat. Hell, even WoG didn't take long to beat and it was meant to be semi-sandboxish. Not to mention, it was highly less enjoyable overall.
I pre-ordered the steam version, so I only paid 10 bucks for the title. But I've gotten quite a few of my friends and online buddies to buy the game and play it, so I'd like to believe this somehow evens things out karma-wise.