I just drove 45 minutes each way for one hour (take-off to landing) of aerobatics. Was it worth it? Definitely!
Furthermore, just like the previous posters said - if you're going gliding you're supposed to be there the whole day. The club where I glide is two hours away, and most of my time there have been midweeks. Drive there on Sunday, pitch my tent, spend five nights and five fulls days at the club (with all meals served in the clubhouse) and drive home Friday evening. Best vacation days I ever spent so far.
(The only time where things became absolutely out of proportion is when I had to drive to the club for two hours, sit one 20-minute exam, and drive back for another two hours. And repeat that for another exam one week later.)