We're still fulltiming in our 1996 38' Carriage Conestoga 5th wheel that we bought new in 1996 and headed out January 1997. She is still doing great. We did have the outside stripped and painted including decals in 2010 as her color scheme was dated looking even though she looked good. We did "freshen up" the inside just a bit to make her look current.
We traded in our 1996 Dodge Ram, with 341,700 miles on her for a brand new 2014 ,now 2015,Dodge Ram. We have over 4,000 on her already and that was with 3 months stationary in AZ recovering from surgery.
My feelings agree with others that if it looks good, is well maintained is paid for, & you are happy, why get another? Hugs, Di