fiddy one fiddy can never be counted out. It took a while for them to REALLY catch on as being a legit CLASSIC amp that companies even try to model, right along with the classic marshalls, fenders, boogies, and vox's. Remember in the late 90's early very early 2000's when they were 300-500 bucks a head used? I know i know... inflation. but it wasn't even that. no one took anything that said "peavey" or "crate" seriously back in those days. now we know the guys name who really designed it(james brown), and what else he has done, and those other amps get love too. I know it has its flaws (cold bias, ribbon cable issues, pain in the ass board rivits, dirty fx loop jacks reeking havoc, etc), but when they're healthy, they're monsters.
In Flames were using those amps when they "came up" and were first touring the states back in 99. thats when i really noticed them. I'm sure they weren't the first underground metal band to use them like they did, but it wasn't long after that, where everyone was using them. I know jesper strombald and bjorn gellotte were the only reasons i bought one. i was super green to amps, and was like "ok, i'll use what they use!" because of course colony and clayman sounded amazing.