Well sure, but 'crappy' is a relative term. And I rather think its appropriate when you compare Half-life2, Doom3, Far Cry on the Xbox to their PC counterparts.
And I believe that was the question that expletive was asking. Are these games of interest to anybody on the X360 that already has them on the PC?
My answer is no. Just as the Xbox versions of the above games weren't of any interest to me.
Certainly, for people lacking the ability to play these games on the PC, they make sense for those who have them on the X360. (Also, there's the fact that the X360 versions of games are currently closer to their PC counterparts [sometimes even superior] than the previous PC/Xbox titles were.)
Then again, at this point of the X360's lifecycle, how many people own a 360 that don't also own a computer good enough to play them that way? The xbox games I mentioned above all came out at the end of the Xbox's lifecycle.