The BB package was available to Welcome Pack customers for only a few months - DISH then pulled the availability without notice. I called a week later to add it but they would not. Being a 15 year customer, I tried to explain that I could spend $10 with DISH or give it to Netflix, Hulu or Amazon Prime but DISH wasn't interested. Given the chance, I would add it.
Read above - $10 may not be feasible for your package depending on what that package costs Dish. Dish is not getting $10 from you, they are getting anything over the cost of providing it.