Exactly. It's like competing offers on a house. The seller will usually take the cash offer versus the financed offer, if they are relatively close. Dish would probably have to surpass Softbank's offer by quite a bit to be accepted.The problem with the Dish bid is that there is less cash up front and more stock to hold on to after the deal.
And, if Dish does win, they will be leveraged up the wazoo, which does not bode well for long-term financial health.