I'd just suggest considering fuel economy and comfort if your wife is driving the truck daily. For instance, my F250 is not very comfortable (unloaded) as a daily driver ... it bounces all over the place. And fuel mileage is only 16 at best.
I drive about 100 miles a day so I've been driving my wife's car (29 MPG) while my wife has been driving my truck (her commute is about 1 mile and that's going the long way). But right now, with diesel being $4/gallon and the ride miserable for her daily errands, she's a trooper for putting up with it.
Just something to consider ... oh, mine: 3/4 ton automatic, 6.0 diesel, short-bed w/extended cab.
1991 Ford F350 CC, LB, SRW, 7.3 NA IDI