I am 100% sure I will not join a game with expensive boosters, because boosters are the only saving grace of many nations, otherwise worthless. Also, everything that diversifies your nation is fun. Less opportunities to diversify, less fun.
As for no gem generators, I have mixed feelings about this idea. It may tone down MA Pythium and Rlyeh, which is a good thing. It will also kill Oceania, Bandar Log etc. Good luck winning with your mighty ichtycentaurs and markatas.
Etc, etc. You wont be able to make clams and counter recruitable SCs with Golems, for example. One nation will have Niefel Jarls / Gadols / you name it, other nation will be reduced to one or two Golems and, well, combat evocations; good luck again.
And I wont even touch the blood magic issue.
