Good posts IO540 & Whirly.
Re the statistic of 90% of pilots not making it to their 2 year renewal - I did my PPl in the States 3 years ago, and of the 7 people I keep in touch with - all are still flying
8 people does not a scientific experiment make. But perhaps it's the much more enjoyable introduction to flying (turning on the runway lights at an unmanned airfield with your mic, doing a touch and go on an international airport's 10,00ft runway just for the hell of it) that keeps us battling through the various nerds and nazis flocking around UK aviation.
Of course it could be that people who take 10% of the time and pay half the cost of getting a PPL are just a bit more intelligent than the rest