If the numbers work for you then that's all that matters.
Our TV has not been a daily driver since we traded our 1999 Ford Expedition and purchased a Ford Excursion V10, then traded that in on a Ford Excursion with the PSD, then sold that and purchased our current F350 PSD.
However, it's a curious subject because I've seriously been considering selling my daily driver (2008 Pontiac Grand Prix GXP) and driving the truck as my daily driver. I have a 20 mile or so round trip daily for work. And we still have an old 96 Mercury Sable that I could drive every now and then (old rust bucket that runs beautifully) if I needed to.