Tying this back to the "do you buy off-the-rack or boutique/custom" sub-thread, I have to confess that I haven't ever even played a bass tube amp (guitar amp, yes), but I have wondered if a lower-entry-point version might be a good way to test the potential. I've been very happy with my long line of solid state amps (OK, not the 1985 Roland BN-60) and my current tube preamp (Monique), but there's always that "the notes are bluer on the other side of the power stage" line of thinking that has tempted me to check out the KT-88/6L6 waters ever since I started.
NOTE: Should this be too off-topic, I can take it to Amps and Cabs...where it will likely descend into a solid-state/tube flame war without Dingwall context. I know all o' youse is better than that, so I started here, but just let me know.
So, O Great Experts Not Necessarily Named Tom, as a Z2/Super J/Tony Franklin Fretless/Bergantino 2xNV115 owner with a regularly practicing but infrequently gigging band of friends who play loud rock for audiences of about 150, would you (it's an entirely subjective, personal matter) (1) stay a course of over 30 years because "I'm happy--if ignorant--and it's just not worth it at my age," (2) ease in with a modest OTR version (e.g., Bassman 100T) for practice/recording/small gigs, or (3) feel it necessary to jump in the deep end (Reeves or other) because "anything less is a pointless compromise"? A long-term, live-fire trial would be necessary, and no one's loaning their expensive amp for that.
Equipment would need to be sacrificed for any addition as I'm a husband of my word, and I'm not keen on a $2,700 depreciated gear bloodbath absent @spiritbass giving the inside scoop that boutique tubes are indeed a slice of Heaven (or wherever it is that Bon Scott went). The B|Amp and GB SM9.2 backup stay as Class D counterpoints, as does Monique.