I don't think DISH can carry EI because I'm pretty sure DirecTV has the DBS exclusive on it, just like they do for the NFL package. When they did that last contract on MLB EI, D* had the complete exclusive on it, so they were the only carriers period (even cable) until Congress stepped in!!!...
Yup....another infamous attempt by D* to swindle their sports fan subs by creating a monopoly and jacking up the price. Then when congress did step in, the whole thing became a bidding war because whomever else wanted the package had to match whatever magnificient price D* was will to pay for the monopoly of the channel.
So why doesn't Charlie carry EI? It won't cost Dish subscribers anything unless they sign up for it. And I expect Dish's cost for EI is per subscriber, so they shouldn't have to "burden" their non-sports fan subscribers with additional price increases...
But what would it cost E* up front? Thats really the million dollar question here. Any rabid sports fan who is willing to cough up the kind of cabbage to fund a successful business model in the manner you've just described (only the EI subs paying for EI), are already happilly watching EI on D*. I can't imagine many E* subs are out there pining away for EI when its readily available elsewhere and has been for some time. So basically, if E* decided to offer EI tomorrow, who would pay for it? Its anticipated that the number of interested E* subs willing to pay the current going rate is rather low, so who would be paying the up front costs just for E* to have the ability to even offer the package? And THAT is where the whole 'burden their non-sports fan subs' comes in to play. E* would have to distribute the initial costs amongst its current subscriber base just to have the ability to even offer EI, and it would take quite a long time for E* to build up enough of a subscriber base that is even interested in EI to where the subscriber base is even large enough to cover the carraige costs. Like I said, anyone who wants EI bad enough is already on D*, and its not like E* is going to be wooing those D* subs over, EI or not, any time soon...