>>I'm just suggesting that the general population doesn't have 50k to spend on something that only provides one very specific utility.
I doubt that. Take a look at this:
http://www.autospies.com/news/Study-Finds-Americans-Own-2-28...
The average American household owns 2.28 vehicles. The percentage of households that own three or more vehicles is a whopping 35 percent.
Furthermore, the most common pairing of vehicles in American households with two to four cars is a full-sized pickup truck and a standard, mid-range vehicle. The latter can basically be a Tesla.