Markets among different tokens will arbitrage itself.
SPS to purchase pre-release, pump up temporary then fall back down.
SPS to craft stuff will also converge to equilibrium to the value of the items crafted and traded.
Yield and market value will continue to drop as more and more SPS get minted and not much taken away.
It’s a tricky business. How do you keep the existing people happy with the return, while keep the game accessible for new comers?