Here's the situation: parents have a family plan. Two of the four lines are ready for upgrades. However, over the phone, I learned that, apparently, only the PRIMARY line gets a discount. Everyone else gets the normal phone price. So the representative was telling me the HTC Incredible was going to cost me $299 (and then I get $100 rebate) so $199. Is that right? If so, being eligible for an upgrade grants me the ability to pay normal price? I thought I got some kind of credit...not just the primary number. Anyone?