@moskaubear, I think your refinement of Linkmans355's idea has potential, i.e. buying PC producing land with gold but implementing a risk component also. I like it, because, it avoids part of the issue of the "richer players" getting PC quicker, since, gold isn't created linearly but rather exponentially faster.
My idea, of trading your land purchased and all of your earned gold once you reached a earning of say 2 Million to a Non Player Character for some planet coins, accounts for that exponential growth. It would also reward players who monitor their gold flow carefully and make good land investments. Then it would effectively reset the playing field each time the trade would occur. The only issue is higher level characters receive cash quicker through battle by having more stamina & energy.
I saw a suggestion of gold to turned into PC. That could quickly get out of hand. However, how about the option to reset the gold function for 1pc after a certain threshold of gold production is reached. Which makes that function of the game useful again.
It shows during half a second 60 and half 0 because of the rounding decimal of the shown number. :)