I certainly think many, many folk can empathise with this problem. I've been a fan of old cars for a very long time. When I was younger, it was very much a "one in - one out" system which worked very well. However, as I've got older and aquired more space and money, I seem to be completely incapable of moving things on. I have a mk3 cortina estate that I began in 2005. In 2008 it was nearly* finished. I then split up with my wife at the time so work on the cortina came to an abrupt halt. At the same time I was forced to sell my beloved 3 door Cosworth which was a desicion I still regret to this day.....
Anyway, the estate has gone from place to place aquiring a bit here and loosing a part there. In the meantime many other projects have arrived and departed but most have stayed (SPC, cough, cough). I can't bring myself to part with the poor old bus and it doesn't owe me anything anymore so it may as well stay but when will I find the time to complete it????