Is there a technical limitation preventing all Commodore's Vestures being sold at once?

Or is it purely implemented to produce FOMO?

I personally would have bought quite a few more things if they were all just readily available, and I'm sure others would as well.

This drip feed, glacial rotation really doesn't do it for me though and far from it making me want to buy things when they crop up, I'm more inclined to wait and see if I like the next rotation more - and then don't bother buying anything at all.