The $40 dollar tier is limited - that sort of nonsense pisses me off. After that it's $50 (30 pound is 48 bucks here atm). Way too much for a 2 million dollar game with so many unknown variables, bad starts, etc.
If they get it made and its good I'll pick it up then - when it's on sale. I just can't see this as more than a $20 game for me.