Switch to the lower cost Premier after the 6 months discount period and see if you really notice a difference.
Here is what I'm looking at getting...
Look at the chart at the bottom of the page in the Ultimate column.
My friend pays for this, gets 60+ where he lives...
I will have it setup so that my modem will send the signal out to my gigabit switch over my cat6 cables in the wall, which goes out to my entertainment center where I have the TV, BluRay, Xbox, AppleTV, and STB (DirecTV soon).
I finally bought a better quality higher-powered wireless router (ASUS RT-N66U) and that made a big difference with the wireless devices.