Is the difference between the Premiere and Premiere XL worth the increased cost?
Do you have a 5.1 or 7.1 surround sound home theater? If so, then the THX sound is probably worth it, if not, then get yourself an external 1-2 TB drive that's compatible and go with it. I have Comcast, with 1 XL in the living room (where the surround sound is) and a premier downstairs. I do love the extra space in the XL though - it's been nice not having to deal with the space issues the Comcast Motorola boxes had.