I'm a dyed-in-the-wool Marshall kinda guy
I lusted after a 7200 for many years, managed to find one, and gigged it extensively.
Then I began on the 7400. Now I have two (one as a backup) and assorted Marshall cabs. I did have the 7412 cab, but Couldn't hear it on stage, however the crowd were pinned to the back wall 30yards away at some smaller shows lol
Yes they're heavy, but I've not found anything that sounds as good, or deals with a massively distorted wah quite so well