Well if you already have 2 full size tow rigs then a TT for occasional use makes sense.
My kids, 9 and 13 now love class Cs since they rode in one in AK when we were on a trip with some friends. What they liked was the freedom to ride in the overhead or get up and go to the kitchen while cruising down the road. This is the same thing I didn't like. Granted most of this behavior was on dirt roads, low speeds, less traffic than mosquitos but I figure it would be a huge challenge to keep them seated and strapped in with all the amenities available. Chalk another one up for keeping the kids in a tow vehicle and save yourself the arguments that will ensue about why they can't get up and go grab a bag of chips or take a leak while you're driving.
Plus with $15k you can take 1/3 of that and put it back in the bank. Lots of great TTs for $10k or less.
And if you don't want the length and towing hassle, throw the $5k at upgrading your 150 to a comparable or better 3/4 or 1 ton and get a $10k TC. Bingo, no trailer, drives like a motorhome without the aforementioned arguments from the kids, and will go places you can't take a trailer.
Good luck with your search
