Halfbaked, your arithmetic presupposes that I can fly during any daylight during the year. In reality, I have a Monday to Friday job, and can only occassionally fly during the week. Therefore, available days to fly decreases by 71% immediately. And as we all know, weekend weather is rubbish. Or at least seems that way.
I say again; I bet most PPLs are in a similar situation to me. VFR only, weekend usually, would like to do more, but financial/family/other constraints make it difficult. 50 hours for good currency? Rubbish. Or there are a lot of very unsafe flyers out there.