Ebonite has no less than four domestic brands. Columbia was one of the Big Four before the buyout and they're having to develop new cores and covers to get the Columbia and Track lines restarted. Another brand, Dynothane, and a smaller manufacturer at that, is just another brand in a crowded market.
I don't think you can say "Oh, but I loved DT, now it's that much more difficult to find them". The DT spirit is now with 900Global, the new DT is just a name.
SH