That video certainly isn't me. And it's not in the USA, so I can't comment on the culture there. Despite him going fast, I didn't see anything reckless whatsoever, which is why I posted it.
Anyway, my little CBR1100xx moped gets me a nice respectable 27-45mpg to and from work and running simple errands, 12 months out of the year. (I only missed 6 days of riding last year) Bikes are great!
Loud pipes on the other hand... Yeah, I like the sound, but really, think about the hundreds of people around you who just don't want to hear it. Is it really that important to you? Personally, I've never heard what my stock pipes sound like at 10K RPM, but I suspect they are loud enough for most people... I don't even like idling my stock pipes in my apartment's parking lot. It's definitely a bit louder than a car as it is... and I want to be a good neighbor.
If I had to replace the pipes due to age or damage, you can bet I'd get something a little less restrained. But pay money just to be noisy or for an extra couple measily horsepower? Nahh... I'd spend an extra grand or two to get a faster bike before I dropped a grand or so on aftermarket pipes and a power commander to make use of 'em. I'd rather spend that money on beer anyway.
Edit: I actually wouldn't drop a couple grand on a faster bike. I don't really care for the 'busa. Although a Sprint ST might be interesting to check out, I actually can't think of anything I'd be eager to trade my ride in on at the moment. Maybe a cruiser would be interesting.. but it really doesn't fit the kind of riding I do (combat commuting). I've been tempted to step down to something like an SV-650 (loved that bike), but then I'd have difficulty carrying a 55lb bag of malt home from the LHBS.