I'll voice the dissenting opinion and say I think this is great. You and I have already decided this game is good and worth our $12.95, or we wouldn't have hundreds of thousands of games under our collective belts. Whether or not they offer me a promotional rate, I'm hooked. Offering me a discount of a few dollars wouldn't impact how many leagues I play at all, but for a newbie or someone who's been inactive for a while, it could draw them in. The game is being bolstered by new customers and they're still getting my $12.95 to put towards improving the game. I'm all for it.
What would make me feel more valued as a loyal customer is more regular updates on the rebuild/new features...but that's a topic for another thread.