Perhaps they will come back. Certainly with no one playing out and those (like me) who just get together with a few others to make some noise for fun not doing as much, demand is probably way down. Or maybe with fewer opportunities to play out people are spending more time maintaining and changing strings?
On the other hand, they made a wide variety of colours - black beauties, red devils, cool blues, all the neons... I have to think that the variety of colours meant low turnover on the SKUs because there were so many options. I don't know what the economics are around the variety of colours (i.e. were the colours and coatings done in house, or was it out sourced, what were the minimum production runs, I don't even know how many ft (m) of wore on a spool not how much wrap wire goes on a bass string etc.)
It may have been time to rationalize the SKUs and the down-turn made for a reasonable place to do that. What really surprised me is that Black Beauties are gone. I would have thought that those would be one of the more popular SKUs and I would have guessed that Bootzillas would have been one of the slower moving SKUs. I guess (at least to me) there are still many known unknowns and I suspect even more unknown unknowns.