Remember: if it floats, flies or f**ks - rent, don' buy! That said, the UK renting scene is rather depressing,
See
http://www.pprune.org/private-flying...-if-rolls.html
A short comparison: the most produced thing that flies is Cessna 172, and a Cessna 172R is worth about US$ 240 000. Which is also about the price of a Bentley Arnage.