Is an upper tier trailer worth twice as much (price)?

Well the Vengeance is definitely FR lower line of toy haulers and the Momentum is way on the other end of the spectrum. You have to look at the standard items available with each which there won't be much comparison, but again as others have mentioned you have to get one in the price range and the floorplan that works for you. I will go out on a limb here some, being I haven't owned one, but I think for the long haul the Momentum would be your way better choice.