Here is a simple one i'm not sure anyone will know an answer to. On Apples site, an iPhone XS with 64GB gets you $300. On ATT's site that same device gets you only $245 and then an additional $30 (assuming waving upgrade fee). I'm curious why i would want to go the trade-in route with ATT unless...the trade in value with increase based on the pre-order. Meaning on Friday, the value of this device will go up with pre-ordering a new iPhone 12. Anyone?