Mitch,
Wasn't trying to be the fly in the ointment when I made that suggestion, glad you saw the constructive reasoning I had. I'm in the midst of my own engine upgrades which would be hard to justify in most circumstances. However, I've got some really good prices on most of my parts and I'm doing all the labor except tuning myself. My costs, though appreciable, are minimized. I also know I will continue to put more money into my bike than I can ever hope get out of it, but that's just it--I love my 748, think it is timeless and beautiful, and have no plans to ever sell it. To me, it doesn't matter that I could just buy a better, faster bike for less money. And you know what else? I 've learned that at the track my "old" bike still has a few things to teach GSXR's (until the straights--hence the motor work).
Also, someone mentioned professional suspension setup and I agree completely. Ken at Superbike Italia did mine and that, along with the 4 pad Brembos is probably the best money I've spent on my bike.