In Tucson, AZ in the Winter you'd pay about $10 per foot of length for wash, wax and buff. I get mine done there each Winter and then during the year take care of the finish myself. I bought a Simple Chuck deionized water system for washing and use Wash Wax All after washing. I wash the coach probably 4 times a year. Do the Wash Wax All once or twice a year and have the pro-wash/wax once a year. So far so good.
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2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
I have a 09 Journey and have it washed a couple of times every year at Blue Beacon.They have a $12? Option to have it sprayed with Rain-X after washing. I have used it since new and in my opinion, looks better than had I spent hours waxing it. Suggest you get your coach Washed at a Blue Beacon and add the Rain-X option and see how it looks. Think you will forget waxing forever.
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Bob
09 Journey 39Z
Southern Ontario