2008 Mobile Suites vs 2014 Big Country?

Easiest way for you to know is actually compare the two,frame thickness, axle capacities,tire capacities,brakes,gross weight,width of units,R-factors are all something that you can compare. The MS was built with the full timers use planned into it, don't know about the other unit.Many of the MS units came with dual pane glass, two a/c units and many had heat pumps, king size beds, large propane tanks and large refrigerators. The MS should eventually taper off to a set value over the years and if your already buying it as a 5 year old unit your depreciation will be much lower than buying a new anything. The MS units are normally heavy, that means a loaded pin weight will need a truck capable of handling that weight. Might be more than the BC, but as others have said, loading with your items and options could negate that.The thicker walls of the MS do knock down sound from the outside and helps in cooling and heating. As always your decision, but looking at the whole picture sometimes can make a decision a bit easier.