I play em' all, tube, ss, ss with a tube pre (I also like them all.) The harsh reality when it comes to all of the amps and tones we prefer, the audience in general, can't tell the difference and in fact, does not care what we play. I have my preferences and take what suits the gig the best.
Since you really only have to please yourself and you like the 400+, I would suggest you save yourself some grief and keep your eyes open for a used one. Have it checked out by an amp tech first if you can. If you don't get the 400+ and buy something else, you will always think that you didn't quite get what you wanted.