If Gaia made personal rewards that were worth while, it might actually be successful. We already have a couple dozen different goggles on Gaia, so what makes the lower tiers so fascinating, besides nothing.
I kinda wish gaia would take up doing a RIG for these sort of things - make a dozen or so recolors of items that people might actually want, place them in a RIG and give it out as a personal tier reward... like... 10 mil can retain it's achievement, but then at 100 mil you get 1 of this RIG, at 500 mill you get, say, 5 of this RIG, at 1 trillion you get an additional 5 (or 10), and so on.