Don, you will enjoy your Tailgater and Dish service. I've used a Tailgater and VIP 211k for about four years now, and I am VERY happy with the portability and the ease of use.
I can tell you from experience that the Tailgater will work well with 100-ft of cable, which will give you even better placement options than the 50-feet it comes with.
Setting aside all the quacking about eastern arcs and locals, I think the Pathway X2 does offer better reception in bad weather, although no one has yet demonstrated how much better. In poor weather the picture from the Tailgater will break up and/or go black.
The Pathway is bigger and does require a bit more care in handling. I've dropped my Tailgater from eight feet without damage, and one more time onto my noggin, with damage to my forehead. But TV service was uninterupted!