And beyond the fee; I would love Gatekeeper if I could manage the certificates myself! I don't want the choice to be "Apple's feudal system" or "wild fucking west" exclusively.

IMO they are being complete shitbirds about app signing and I am actually surprised to hear Mavericks is not more restrictive. I fully expect them to lock it down at some point. (I've resolved to use only FOSS in the future and not buy Apple.)

Also I want really fine-grained permissions that I can disable to make system calls return fake information a la Cyanogen Mod.