Stratslinger, I don't really agree with your assertion either. By the time they get to the NFL the strongest and fastest have been called up which make some of the gimmick offenses you see in college seem implausible but when they're run they're typically thrown together makeshift and treated as gimmick. That said, there really are only a few very nice defenses in the NFL as the bulk of the money still seems to always be thrown at the Offense.
Whether any of it could survive the NFL remains to be seen as very few offenses have ever stuck with such a thing for very long. Many people are also rather selective what they consider a success. Frankly I'd say the gimmick plug in in SF seems to be paying dividends as they were a few suspect plays in the end zone away from winning the SB. In any event, I don't foresee any real change happening any time soon barring some owner/admin group growing a set of balls and giving it a real shot. In the NFL, even historically, they embrace an idea that the ONLY thing that works is what seems to be working at that time. Years ago it was all about running the ball being your primary concern. Defense took the limelight for a while... Then the whole "West Coast Offense" took that by storm for a bit and still rears it's ugly face from time to time. Frankly I'd call much of what we seeing currently as more of the Fun n' Gun style which is ironic given it's past.
I'm not sure why it would make any real difference which NFL team you support anyway as it's become a "Who'll pay me the most now?" sport in the name of (allegedly) parity. I read a good writeup at some point where the person suggested making the maximum contract span 2 years (restricted) with 10% of the players weight against the cap drop with each full season spent with a team. At least that way teams would be encouraged to keep players they liked as their egos (and sometimes rightfully so) increased over their careers. The actual cap would have to be lowered as a result most likely but it'd still be much more entertaining to watch in my opinion as teams cultivated and molded their own talents. I also suspect that it would eliminate a lot of your "busts" as you put it as the primary problem with many of those is frequently their speed of adaptation to whatever system is in play at the team they end up on.