Is anybody confused by the intent of the pro-rated tire warranty. I just went through a discussion for the second time with Discount Tire about how these 60 and 70K mileage warranty tires aren't lasting even half the mileage for what they claim. It is apparent that the whole pro-rated mileage warranty thing is intended to lock you into continually buying tires from the same retail store. When a consumer evaluates a warranty on a product... it seems the warranty is supposed to represent confidence in the product ...that the product will "most" likely last as long as the warranty covers. This is not the case for tires at all. Car tires are only intended to last 25-30K miles (unless you are aware of a tire that lasts longer easily, let me know). When you take it back to the retail store (Discount Tire in this case) they simply offer you a pct discount off your next set of tire. But, the pct discount only applies to the actual new tire... not the installation, environmental, repair/replace, rotate/balance fees that are tacked onto each tire when you get new ones. Anyone aware of a car tire that will last me more than 70K miles... or do they simply not exist?