Well, I suspect I am one of your target audience, but still Pprune because my interests and past connections extend beyond Private Flying.
The one and only reason I gave up, hopefully not forever, with approx 270hrs, is cost!
When I got my PPL in the mid-90's, I was still single (just), didn't have a big mortgage, or kids....you get the picture.
At the end of the day, flying was a hobby for me, and with lots of other more important demands on the family cash, a halt had to be called....although I hasten to add, it was my own decision and not at all forced upon me.
A couple of weeks ago, I found myself in the Clubhouse at the airfield where I gained by PPL (actually not Wycombe!), eyeing up the "shares for sale" etc. on the noticeboard.....will be a while, but am determined to "get back in the saddle" one day.