I have 3 Series 3 HDs (all with lifetime), 2 of which are eligible to be "swapped" for refurbed Premieres for $49 each. This cost includes the transfer of the lifetime service, as well as exchange shipping -- so, $49 all in for each unit. My question is: should I consider this offer? While being older models, the HDs are functioning well, and something makes me think their build quality might be better than that of the Premieres? I'm aware of the larger storage capacity of the Premieres, but for the most part this is not an issue based upon their usage. All units have Comcast cablecards installed; I'm not interested in using their On-Demand feature. I'd appreciate the sage advice of anyone who'd care to contribute an opinion!