Former member of Bidford Gliding, did 130 hours between 1996 and 2005, including Silver "C". Loved it and consider recent non-gliding as a temporary phase.
I have to say I do a lot more hours per year now with a PPL and share in a Permit aircraft - about 60 per year, compared with only about 15-20 gliding hours. IMO you need to have more leisure time available to do a serious number of hours as a glider pilot compared with power. It was common to spend 1/2 day at the club with maybe only 20 minutes in the air.