CK, maybe they are similar. I'm just can't put that much of our budget into a tow vehicle. But there are options. If I shop used at about the $20k mark, then the taxes and insurance (not to mention the note) all make more sense.
lee, with my current truck and trailer and in the Appalacians, the 4.8 works, and in most cases works well. If I don't upgrade trailer and we stayed on the east coast, I would have no need to upgrade. If that's your budget, I wouldn't shy from the 4.8, but I would make sure it had 3.78s. I have 3.42.