I will admit I was 50/50 about getting the CO Lifetime Sub, and the MU Uniforms probably just edged it. I don't regret it in the slightest, I still play CO and my heroes in that all have mixed powersets, which free players won't get. Not that you need them of course, but knowing I can hop on and play superheroes whenever I like is quite liberating
I do play STO a lot more though. I like spaceships.