I had a rehearsal yesterday at a studio in Bristol. Most of the kit in there was Peavey. I have grown inordinately fond of my Demeter/Barefaced rig, and previous rehearsal room setups (Ampeg via Trace Elliot, and monster Hartke stack) have left me distinctly underwhelmed with their woolly sound. I had other stuff to take and didn't know how close I'd be able to park, so I compromised and just took the Demeter head (and P-bass). Ignoring the supplied Tour 450, I plugged the Demeter into a Peavey 4x10 - and it sounded bloody good! Clearly both the head and the cab (not to mention the room) influence the final output, but I had perhaps unfairly written off Peavey cabs as bomb-proof, workmanlike, and un-sexy.
Having said that, I wouldn't want to start humping the cab around, as it was about the size of my garden shed. The studio had sensibly mounted it on a wheeled 'dolly' for rolling it around the room, but lifting the thing is not something I would want to undertake single-handed, or preferably at all.