When we bought our '02 Georgetown in 2010, it still had the OEM GY tires on it. They rode harshly and were noisy.
Having been Les Schwab customers for many years at different stores in western WA, I went to our local store and bought a set of 6 Toyos (19.5 size for our rig). With CRES valve stems and tires only 6 weeks after their mold date, the bill came to just under $2300.
When we sold the RV 4 years and 6000 miles later, they still looked new. I never changed the spare wheel tire - it still had the 2001 GY on it and I don't think it had ever been used.
Frank Damp, DW - Eileen, pet - female Labrador (10 yrs old), location Anacortes, WA, retired RVers (since Dec 2014)