The pilot who took me up said there are only 16,000 Soaring Society of America members. Hey there are not even 700 Hoverclub of America members, still each is kind of a rare thing in it's own way.
One thing you all should know; ex-pilot's who have had problems passing their medical - gliders have much lower standards so you can probably keep flying, but without an engine.
I don't need another interest/hobby, but if I were to take one up sailplanes might be it.