(a few reasons) why rock is back

Generally I hate genre-related general declarations about things (especially when Lenny Kravitz makes them) but I can't ignore the obvious resurgence in popularity of rock nowadays. The usual thing with trends is to notice them in their maturity or decline, but the rock resurgence-in stores right now!-is clear thanks to some observations recently made, such as:

1) The Bravery leading off Much Megahits this morning!-remember when rock was all but banished from this channel? even a year ago?
2) yes 50 is at the top of the charts, but Green Day's winning the war-they just cruised past 4x platinum in Canada this week, and will be at 5x platinum by May, quite easily. Expect another round of junior Green Days to be hitting your radio soon-just like 10 years ago!
3) go to Black Market on a saturday afternoon and you'll find it swamped with kinds from ajax/mississauga/richmond hill etc. frantically searching for the best faux-vintage rock t-shirts. the really cool kids were doing the same thing in kensington a year ago
4) where's the pop? A disastrous Destiny's Child album is only the latest in a running series of lacklustre pop performances
5) you can't get into Dance Cave during the weekends, WAY too trendy. the new megaclub Republik has staked its interests in producing weekend rock nights as well
6) the garbage truck on my street this morning was blaring the edge-ok, that's no different.