People don't think that far ahead for the most part. They buy the car, then in 3 years they are in for a shock.
Yup, have seen it first hand while shopping for tires this fall. Lady with a RAV4 with 18" wheels had a fit when she was given quotes for snow tires in her size. Twice what I paid for my 16" Blizzacks and she was not getting high end tires

And I remember when the F150 97 redesign came out and the top of the line had 17" tires, the tire shop said it was going to be $1,000 per tire

Also real poor selection in those large sizes it seems.