THOR Motor Coach

I bought a new beginers RV in September of 2015. A Thor Freedom Elite 22e. No slides Ford E-350 chassis. In 4 years we have completed 4 cross country trips totaling 42,000 miles. We have set up camp in 185 different campgrounds and have had the pleasure of camping a total of 271 nights. So far I have had to repair 1 drawer lock, 1 outside refrigerator access panel lock pin, 1 house battery and 1 entry door latch. I am meticulous with my maintenance procedures, which probably has prevented many failures. We would have liked to been able to afford spending another $20,000 for a "better" quality RV. But so far this one has served us well. We are planning another 10-12 thousand mile 10 week trip this summer. Oh I forgot to add that I had to replace all 6 tires because we wore them out...