"Small, exclusive and expensive"...I think we are already there. At my local commercial operation, a 3,000 ft tow is $60, one hour in a L23 is $50 and instruction is $50 per hour. If you end up with no lift, you have about a 15-16 minute sled ride. Figure in the minimum charges for the glider rental and the CFIG and you are north of $100 for essentially 15 minutes of flying. That is entertainment to the tune of $400 per hour. I don't know many folks that have that kind of entertainment budget. THAT is one problem hindering the growth and sustainability of this sport.