Bah. That is just an excuse to drive a vehicle with decent seats, sound proofing, AC, decent suspension, decent highway manners, and a sound system. I know, you get old and you just don't want to screw around with it anymore. I can believe that. I don't DD my 109 (well if I could find a job that didn't involve highway driving for like, 30 miles each way I would consider it, but beater sedans are REALLY good at that).
The last few trips I've been on, its been the D1's and D2's that have broken down. My 109 on the other hand, just fine. Got me there and got me back. One time it was 200 miles on pavement, next time it was 400 miles.
Also from what I've seen, the expo crew goes through trucks often. Heck they didn't have that LR4 for long and its handed off to someone else. That is a brand new truck. Same with the 109. Was around for like, 8 months. I mean, if you go through cars, you go through cars. Just admit that you want to drive something different every year. If you can do so, more power to you. I do not have that luxury.
That said, it seems like you either own a series truck for 6-12 months, or forever. That is really how that game is played.