I play the pedal steel guitar, one of the few electrics that doesn't sound better through a Marshall. Steel guitarists mostly rely on Peaveys like the Nashville, Session, and Vegas models. Peavey is a privately owned company, and Hartley, its founder, is now in his 70s. Maybe because he's a Mississippi boy, his company has produced amps for us since the '60s, even though we're very much a niche market.
When he's gone, I will mourn Hartley Peavey as much as I do Les Paul, Leo Fender, and Jim Marshall.