The fact that the subject of this thread says "for most public players" means putting the limit at $100 is meaningless. Most public players are public players, because they see cost as the overriding issue, and $100 for most public players says will not play. E.g., Pierce county WA residents that will not play Chambers Bay, but will play any number of other local tracks for under $50. If you want to be "helpful" limit the cost to $50, and tell them what is available for that price. I would bet some of them would be interested in knowing what is available for that price with reasonable conditions. I.e., some courses start twilight rates at 2pm, so you know they are looking for players. Others might start twilight at a time where you can't finish the round, so they really are not looking for players, and the intelligent golfer can rule them out on his own.
Actually, varying the price by region allowing you to go over $50 might be reasonable. For example, The Links of ND at $60, is probably equal to $120 in New Jersey. In either case, The Links of ND and Black Mesa do not belong on a "helpful" list, unless they can get there through something like the two rounds in a day rate that (last I checked) gets Black Mesa to under $50 per round. ND and NM are not high cost areas that can best have cost limited at $50.