Xbox doesn't seem like an interesting platform to dev for any longer!
Why not? The platform hasn't changed, nor has your chance of profiting from it. It's not like you'll be rolling in the dough big time from your XBLA game anyway if most people don't like it, and aren't buying it. It doesn't cost them anything to leave them online.
It might. You don't know that for sure. This just stinks of profit being prioritised over all other things.
Hello, Microsoft? What did you think they were? A charity?