Let's face it. Players can't pay hundreds of thousands of Crowns to encourage the masses to add "purple" to a specific bin, more than any other color.
I want to recommend PARTIAL boosting.

Allow a player to contribute to a Crystal's pay rate, from 1 to hundreds of thousands of Crowns. Each crystal for each strata, would have a (not shown) number of units at the current price, which would increase as the players raised the crown amount - trying to encourage zone changes. As people contributed, that amount/price would fall as the boost ran out or rise as the boost filled up.

This would allow:
- A large group of players to pay collectively for a temporary investment focus.
- A single player to loudly voice his opinion on the best spend in terms of crystal

And the varying prices would make players MUCH more aware of the different gates they could invest in.
Finally, I want to recommend Auto-All deposit, which would examine all strata of all gates to find the best deals, and in case of ties, contribute to the highest strata on the world that releases soonest. Auto-Deposit at any box would consider ALL gates to decide where to put crystal.

With these two features combined, players who don't care, have much less legwork - and those that do, can start making changes right away.
It only means the storage of one more number per strata, and the players don't even have to see that number.

Thanks for reading.

EDIT: No replies?
Do you guys understand the idea? Or just have nothing much to say?