Looks like the Google store is finally offering trade-ins!
Stack with one of these current great black friday deals, and then trade in your old device.
Once their trade-in partner (PCS Wireless) gets your old phone and confirms the value, Google on behalf of their ade-in partner will issue the credit to your form of payment that you used for the order (or provide Google Store credit where they're unable to).
My old P6P 256GB was valued at $300.
Hope this helps someone!
S23 Ultra 512 GB trade in value is $341 hahah