My rough guestimate is $700 +/- $200 depending on options & bundles.
The nearest device in capabilities is probably the Galaxy Note mobile phone series (plus keyboard plus controller plus more storage). Check the off contract price for a new one.
Yes. And thanks. I failed to find a nice way of saying that.
Even if ED wanted to go through the headache of offering a contract-Pyra, he would need to charge more to cover the costs of dealing with deadbeat customers who stop paying.