I think its very sensibly priced for a luxury item.
I would like to think the Makeb xpac was priced cheaply as an extra planet and increased level cap is more of an essential item.
1m creds and 300k per character is more than achievable for experienced players and 2100 + 700 coins is about right if you really can't wait.
Think about it. It shouldn't be priced at all. Credits or otherwise. It should be done through a quest line like any other non lazy company would do these days. Not a subscriber? Buy it the same way it was available for the HK quest line way back. There is nothing sensible about what they've done here.