And to add to the chorus, it's the same reason why Verizon customers shouldn't freak out because their new devices don't support LTE on AWS. It would be better if Sprint supported 800 LTE and 2600 LTE now, but since those networks will not even start to come online for 14 to 18 months, it's just not a big deal.
Ironically, AT&T is the only major carrier thinking long term as their LTE devices support LTE on AWS. However, they just had to jettison a lot of their AWS spectrum to Tmo as part of the breakup. So even though AT&T devices will support LTE on AWS, they will likely not be able to deploy much of a meaningful LTE network there.
I still really like Sprint's long term spectrum position and future LTE capacity. I'm quite bullish on it. However, I think Sprint will need to complete a buy out Clearwire in the long term to completely secure their future spectrum. Although things are currently quiet and peaceful with Clearwire, Sprint is counting on their spectrum for the future. And they will need to secure it a little better...
Robert