Been with DirecTV since 1997 but thinking of switching to DISH due to savings. However, once my two year DISH contract is up I might want to switch back to DirecTV, again for savings. How long to I have to be gone from DirecTV before I would be considered a "new" customer and eliglble for new customer incentives? I have the option of using my wife's name with a second land line phone number, but the physical address would be the same. Thanks.