Heavy Rain is a great game. I sold it for $38 or something, so I couldn't NOT sell it, but if what I keep reading about this game being retooled for PS3 Move controls is true, then I may wind up rebuying it to experience in a different (and one would imagine a superior) way. I remember while I was playing this game thinking to myself that if there's ANY game that would make sense for Move that I know of, it was this one.
The other reason I'd buy it again is if the dlc turns out awesome. The first bit was too short to be worth the price of admission. Maybe it'll become a Greatest Hit...