Nobody is forcing people to buy these items and being a collector is 100% voluntary.
Since they've been getting this far, I'd assume their prices MUST be fair because people still buy and collect them.
However, I've yet to buy a single thing from them after I stopped with my 1/48's since I'm really not a fan of ANY design after the vf-1, and the 1/60's just don't stand out too much to me to actually go buy them all over again