If you really enjoy warm and tubey, why shouldn't you be able to go out and buy a nice-sounding warm and tubey amp? It seems these days manufacturers (and to some extent, reviewers and magazines) want to dictate what listeners should be listening to, i.e. what they deem "correct". Witness the move to a lot of very analytical speakers from many manufacturers.
There's a reason why SET amps, despite several significant drawbacks that require work-arounds, are still around and produced by a number of generally smaller companies.