Rerelease of older models?

[peter]

I've been to a lot of anime-type shops where I live (Richmond, BC Canada) shopping for Macross models, and it seems like it's always the same ones...Macross 2 Valkrie, Glaug(officer's pod), 1/72 scale transformables, Zentran suit, meltran suit, a couple of Mac 7 models.....

I'm here in Japan again (7th time this year) and it's pretty much the same sort of thing at most shops.......same models.

Why don't they re-release other kits like the regular zentran pods, or the Macross itself? I should probably be asking the manufacturers but I'll never get an answer from them....thought someone here might have some thoughts.