I picked it up on GMG on a 20 buck pre-order, suspect I'll get at least two more complete play throughs in it, easily worth 20 bucks.

One will be to mess w/ MECs, the second to mess with gene splicing.

I'm assuming the core game play is pretty much the same, so it's always down to money early on about where you want to commit it so I always end up sacrificing something I wanted to fully explore but couldn't.