Thanks a lot for linking my blg entry here - I'm impressed at this discussion (feel free to leave a few comments on my blog as well). I personally would find a <= 50 L$ admittance fee per visit the better idea as well, if it HAS to be an admittance fee in the first place. With such a low fee I could also pay the tab if I want to show the sim to "poor" friends, and in turn they would not feel as uncomfortable compared to having me pay 199 L$ for them.
Basically Rezzable is trying to mix the economies again, charging prices to make a RL revenue which are simply too high inside the
SL microeconomy.