Make the Welcome Bundle a monthly option
Could you make the Welcome Bundle (or something similar) a monthly option instead of a once-in-a-lifetime-oppotunity?
The current Gem prices are ridiculous, but the Welcome Bundle was very fairly priced and I would gladly buy it once in a while. And I guess, I'm not the only one.
Another option would be to sell the mastery pass for 7,50$ or so.