I purchased a 2000 Thor Hurricane two years ago (15,000 original miles) and put almost 4,000 miles on it last year. All appliances worked except the heater. I had to clean the dirt dauber nests from the fan.
I replaced the tires and batteries last year; swapped the incandescent interior bulbs for LED bulbs; added a Rear View wireless camera system; resealed the roof and windows; oil and filter changed; repaired the windshield wiper arm inserts; bought a new fire extinguisher; replaced the TVs with flat screen TVs.
Last week I started going through the motor home and replacing the things that are aged: Shocks, serpentine belt, and radiator/heater hoses. I also purchased a kit and polished the headlight lens. I replaced the 1157 incandescent tail/stop light bulbs with LED bulbs. I replaced a bad windshield defog fan.
I am going to replace the CO and smoke detectors before the first trip this year and add a SuperSteer rear track bar.
I am a DIY type person and have a well equipped shop and covered garage area to work in.
The little things add up, but I know what I have when I finish "maintaining" the motor home.