Good morning sir ribit!
I do not know why but many people from all walks of life do. Maybe they just buy the hype or like the idea of saying they were there.
Like you, I have never had any desire and neither has my lovely wife.
I am more interested in the eastern seaboard starting as far north in Maine as possible and driving down the coastline looking at the natural beauty. Of course this would take likely a month. Slowly so we can visit and enjoy some of the local small towns along the way..