I've been playing 40k for years and love it, but the only thing I've bought over the last year or so has been the latest rules, Tau Codex, a few (maybe 4) White Dwarfs, and 2 models (Stealth Team box and SM Drop Pod). I used to purchase almost a model a month and buy virtually all the codexs as well as my White Dwarf subscription.
I'll be sad to see them go, but if something doesn't change, I don't see them being in business much longer.