Im not sure, but I think the amount of discounts MAY be dependent on what you have already received in the way of discounts. For ex, if I've been with Dtv for 8 years but just now learned about credits and such, they will do a lot more for me because I haven't received anything yet. I have had Dtv for over 10 years. I always get a ST discount but few other credits. This year when I called, they gave me a lot more. Credits totaling $450, and free installation and parts for While Home Service which regularly costs a few hundred. Others have paid for WHS install and parts. I'm very happy with what I received, and didn't have to ask for most of it. They saw my history and hooked me up.