The same could easily be said of many of their amps but it probably comes down to consumer demand.
When tweed and blackface amps started becoming collectible in the early 90s they 're-issued' the Bassman and Twin Reverb, and subsequently reissued other tweed and BF models.
The only non-black tolex model they have ever reissued, IIRC, is the '63 Vibroverb which only lased a few years as it was superceded by the Custom Vibrolux Reverb.
The brown/blonde tolex amps remain much more of a niche market compared to the popular Tweed and BF models, although I reckon one or two carefully chosen reissues would sell pretty well. The brown 1x12 Vibrolux and blonde 2x10 Tremolux piggyback would be my suggestions!
