Our equipment never got that old, but we had an '04 Southwind that we put 110k miles on in 8 years. I performed every required service faithfully and was fully comfortable that I had done everything needed to have safe travels. Traded it only because the interior was shabby and a major refurb did not seem reasonable on a chassis that I thought was "only" good for another 90k miles. The replacement coach has 48,000 miles on it so far!
Any trip that does not have an interesting failure is a blessing. We have had many, but only a couple stopped us for mare then a day. The most recent was a refrigerator failure we discovered upon returning to the coach after a 3 week trip overseas. Saturday afternoon at about 3 PM a began a search for help and by 8:30 pm that night the reefer was cooling! If you are near Blue Springs MO and have a failure call Athena Motorcoach and Jay will bail you out if it is possible.