Well I won't be doing any continental touring, so although I planned to get the book stamped until it was five years old, events of last year made me chose to DIY it - that was basically the dealer wanting the car for a week - plus the inconvenience of getting there & back. If you can prove the service has been done by keeping receipts, that should satisfy most people. My Mog had had four dealer stamps but they hadn't checked the gearbox oil level. I know that - as the heat insulation on the tunnel hadn't been cut to access the level plug, and the plug didn't align with the hole when I did get in there. Not very impressive.
Having said that I don't intend to sell it anyway.
