I can pretty much guarantee that you'd have an easier time finding players for a percentile RPG than one based on coin-tossing or tarot reading.
A matter of debate that one. I've played 2d6, 3d6, d20, d100 and dice pool and it depends entirely on the system built around the dice mechanic. One of the best homebrew games I ever played in used no dice at all, but used playing cards. Unfortunately the argument over d100 or dice pool obscures the fact that it will need to be a revolutionary system which may not agree with 2nd OR 3rd edition players depending on what they are used to, if they have become blinkered to the new systems possibilities.
One thing I would say about percentiles or dice pool I found out while doing Grunburg for both 2nd and 3rd edition.The second edition encounter tables took a lot more number juggling and a lot more space than the third edition to produce broadly the same results. Make of that what you will.
Edited by ragnar63