I doubt they lost 100K subscribers over MLB Network. As a retailer I talk to people every day, and the loss of the MLB package cost Dish very few customers.
Sure there was a few last year that cancelled Dish because they had the package in 2007 and could not get it in 2008, but for the most part those customers are already gone!
As far as new customers signing up, people will start asking for it for the first few weeks of April as the baseball season starts but after May it will be a non-issue again.
Its just like Sunday Ticket and the NFL. The last 2 weeks in August and the first 2 weeks in September people ask about it, and might be a little pist that Dish does not carry it, but after that 4 week period people stop asking and we don't get asked about it.
I'll be honest, there is a bigger issue that Dish does not carry the YES Network, than Sunday Ticket and MLB Innings combined. Atleast in any other market you can get your local team, but in NY you can't even see the Yankees. I don't know why anyone would want to watch the yankees anyways, but if you did than you can't get it on Dish.
But really when you think of it, the YES network is the own fault of the Yankees in the first place by demanding too much money to begin with