Allow me to bring the average down a bit. 25 hours a year since Oct 2005, mainly in Citabrias (such fun) with a few hours on PA28. Hire rates seem to be cheaper here (Aus) than in UK.
Mortgage, (ex-)wife and 4 kids takes care of most of my $$$, but I hope and expect this to change at some point in the future.
If you really want to fly, you'll find sacrifices you can make in other areas of your life.