Hi, all - Newbie with a bunch of questions

Tires are damaged just sitting parked with weight of RV, they can develop sidewall cracks and other internal problems in 4-6 years. Frequent driving and covering of tires from sun and weather can extend useful life. Our roof AC lasted 9 years but was used a lot during a home remodel. Our fridge died at about the same time, was used a lot slightly off level. There is hearsay that current fridge cooling units don't last as long. RV fridges are not robust like home fridges with compressors, etc. Strong sun is tough on awning fabric, expect 10 year life. Engines, transmissions and engine cooling systems on Ford E450 V10's are pretty trouble free. Brake fluid needs changing and brakes should be inspected and serviced as needed for safety. Keep an eye out for evidence of roof and window casing leaks and take action to prevent expensive damage. Most RV brands use the same brands of appliances, AC's, generators and awnings. Some brands use better fastening methods, materials and quality control during assembly. I would recommend buying a 3 year old rig with no serious problems and setting aside money for eventual repairs, upgrades and replacements in a pearl harbor bank account.Be aware of other recurring costs of ownership.