I use mine as a daily driver. I don't have any desire to have another vehicle sitting outside (or build another garage?) to keep maintained (oil, tires, and batteries need changing whether you use them or not), pay insurance on, and depreciate to nothing. I'm also not sure I'd want to be 2,000 miles from home, towing with an older vehicle that only gets driven now and then.
My TV fits in the garage and most parking spaces, is 15 months old and has 20K miles (5K towing, 15K non-towing). Its computer says it has averaged 14.8 mpg, and it has checked out to be pretty accurate. Since it gets about 10 mpg when towing, the remainder comes out to about 17.5 mpg. I'm OK with that.