ummmm.........ever heard of Rush, Zeppelin, Sabbath, etc?
Tool is a killer band! Oh, yeah, this is about Jet.....they're ok. It's the music biz though. Someone sells a sound and everyone follows for a year or two and then they're gone. The good one's stick around year after year doing their own thing and creating their own sound like Metallica, Zeppelin, Sabbath, Rush and 30 or 40 more that I don't have space to list (and I'm sure your list would be different than mine).