The number of people who have a summer home is extremely high. Having two dishes, or one dish that can be used from two set points is very attractive. Lots of people spend the summer "at the cabin" even when the cabin isn't in the Hamptons.

Or they may live out of a motor home, but it only moves to travel between their regular winter destination and their regular summer destination. They stay in the same two parks all year except for the 4 days of travel in between.

Millions of USians fall into these two demographics. I'm sure plenty outside the US do, too.