I am small scale crown user, if you like the game you play then also pay little bit to support it. It is like visiting cinema or any other entertainment - free meals do not exist.
I agree that fast building troops (and unit deals) should be at least 2x more expensive that it is today.
Coining is good and keeps lights on for this game. But it is bit too cheap - coining full nuke should take much more crown. At the moment it gives huge advantage to coiners -.-