I've worked closely with several companies over the years - I basically have narrowed down to one average sized company I've had a close relationship with for 20yrs. To be honest I don't know how or even why for that matter why they want to continue to do it. New trucks are nothing but a massive headache along with all the regs and a number of other factors if you cross the ditch. It would seem to me that the best option would be to just lease for three to four years and turn the vehicles in and learn to adapt to a never ending monthly payment - I understand in your case this is likely not going to work for you...I've had relations with one company who operates with trailers and rail only, they've washed their hands from all the power units (truck) and contract that end of it out. They've been operating this way for some time now and it seems to work for them...