18 mile commute to work...My TV, (dually in my sig), is my daily driver. No problems, no issues, no 3rd. vehicle..Wife has her's and I have mine and we tow the 5er we want with my truck...part of the trade off for the 5er we want...
I like the OP's math, but having had 3 vehicles and letting my TV set and use a 3rd vehicle to commute to and from work doesn't pan out the way his did...cost of vehicle, insurance, cost of fuel and maint of the 3rd.vehicle, on top of using the TV to tow my 5er, fuel it up on camping trips, keep insurance on it and do maint., the numbers just didn't crunch the way his did...and I do know how to "do the math":)