The best way to trade up to the Pixel 2 will probably be with Google
https://www.theverge.com/2017/9/28/16378446/google-store-pixel-2-xl-trade-in-deal
Google’s expected to announce the next versions of its flagship Pixel phones next week, and that means that if you’re a Pixel owner, there’s a good chance you’re looking forlornly at your soon-to-be outdated smartphone, wondering how you can sell it to fund your shiny new Pixel 2.
It turns out that the best way to trade up to a new Pixel 2 will probably be through Google itself: the company just added both the Pixel and Pixel XL as eligible devices to its online Google Store trade-in program. It’s also offering really good prices on the older phones, as spotted by Droid Life.