Its not. That was a conscious decision made by the community during the 10 months of discussions and polls. You can look at the battery thread in the development category to see the logic.
That being said, we are meeting you halfway, in case your battery forms a dendrite or loses capacity over time (too much).
Check our warranty thread, there we promise everyone reverse logistics. That means that even non-warranty covered defects can be repaired through us for a reasonable fee.
Regarding the LTE version, its being planned, but later. This has been addressed in the "confirmed specs part 2" thread.
I hope this answers your questions and addresses your concern.
sorry I was too lazy to provide you direct links to the treads referred