Anyone out there adhere to the "new rig every six year rule?

Wow, only 6 years?
Well, then you never have to replace tires or batteries....
I guess I don't mind replacing tires and batteries, we are at twelve years on this coach and it is forty five years old. I do often consider that I might replace it with newer technology, but there aren't any. Maybe I will just hold out until there is one that is driverless and solar powered. Until then, we will just lover her as she deserves.

Matt