Glenn, as a long time lefty pinko I'm going to ignore your "capitalist" label :P, but yes, if we don't make money, we can't continue to operate (as our friends in Melbourne found out).
Apart from the PBG-1 and the TLD-1TP (double cut Tele), there's not many kits that don't sell well. So, those kits that aren't on the Top 20 should still be in stock most of the time, they just won't ordered every month.