In case you are a little peeved about Sprint's $100 offer to some new customers, and you want some recognition yourself for sticking around, then it might be worthwhile to pay attention to any emails or mailers you get from Sprint in the coming days or weeks. That's because Sprint is notifying select existing customers that they could be eligible to receive a $50 or $75 instant discount on their next upgrade, in addition to the normal upgrade discount.
Customers who are eligible for this will be notified by Sprint, and will have to complete the upgrade at a Sprint-owned store, an eligible dealer, or online. The deal is running from March 23 to April 27, so while it probably won't be around in time for the next EVO, you still might be able to use this for an HTC EVO 3D or an EVO Design 4G, if you've had your eye on either of those.[Sprint Feed]