I spent last night watching the 2005 Billing Fun Run DVD and I noticed how many great cars are not coming to events any more. It seems a lot of people build a car, come to the events for a couple of years and then disappear. I looked up quite a few of the registration numbers on DVLA and many of these cars are still taxed or the log books haven't changed hands in a very long time. So presumably people are still using their cars. What do you think the reasons are for not coming to the events any more?