Well, I've just ordered the first one, as it's silly cheap now (technically I got it for free, due to an Amazon administration error!).
If it's good, I'll probably get this too, but not 'til it's cheaper. I can't be doing with buying games at launch nowadays. Most of the time, it's just not economical.
I look forward to the not-so-subtle blend of climbing over things and shooting bad people in the face...