I'm sure the dish upgrade is being planned with consideration of the new price increase. They know new installs will drop off due to the $200 install price, and also know people will be cancelling when the higher prices go into effect in Jan (rumored?). Current poll in this forum shows close to 40% will quit in Jan if price increase, so either they will have to provide enough programming increase (quality or quantity) to counter this exodus, or think it is econimically feasible to upgrade everyone, only to have 40% (or probably 20%, more realistic) cancel. The $200 install fee may be to deter new installs until new dish is available to avoid paying installer twice.
Personally, I'm happy with VOOM unless I have to deal with installs or customer service. Since a dish upgrade would probably make me do both, I'd rather they wait until they can guarantee a smooth transition.