Why of course there is, there is covienienve, the next time you reinstall, you don't have to go through the whole BFD2 install (even though you could just suck the kits from the discs), and then of course there is 'completeness' :)
Just like Eldorado, even though I owned the original BFD, I still got that, for me no difference here, been a BFD'er from the start, it's simply the best, nothing else comes close, I own all the big players, and a lot of the little ones, there is no comparison.
BFD is king, I just love it, and I guess I am a bit of a collector. I guess for most there would be know pressing reason to get this if they already owned BFD2, but hey . . .
Oh, another reason, supporting a great company so they can continue to make top shelf products ? No?
Carry on then . . .