I noticed there were two different solid deals on the Samsung phones. I called the Microsoft Store, which offered favorable trade-in value (far more than Samsung), and asked if they would price match Costco at $629.99 They said they would, so I went in store and after working with the manager a bit, I was able to get him to manually override. YMMV!
You will need to show this link: https://www.costco.com/samsung-offers.html
And have them click on Explore Carrier Offers.
I traded in a SGS10e for $400 and a Pixel 3a XL for $400...
Factory reset phones for trade-in, optionally pulled out my sim cards and inserted into new phones and I was good to go with phone working on my carrier (Verizon).
This deal is to combine the best of both worlds: 1. lowest price advertised 2. highest trade-in value
Total for two Note 10+ 256 GBs Unlockrd after $400 trade-in
$563.93, which is about $281.97 each after taxes, out the door. Receipt image attached to post and many of my comments.
Note: trade-ins are strictly 1:1 (1 trade-in per 1 phone purchased). You cannot stack.
Note: Carrier activation unnecessary.
Note: Costco membership unnecessary.
Note: I paid in full with credit card; no financing.
Note: There are no freebie galaxy buds with this deal.
Note: This is an Unlocked device.
My brother is taking advantage of the deal by porting over his Google Fi number for the additional $150 gift card (see attached photo), but will have to pay $40 activation, so you can consider around $171.97 for him.
The Costco deal also doesn't include earbuds, requires Costco membership (or allegedly gift cards provided from a Costco member, which is weird because I didn't think you were paying Costco; if so, you get 4% off as executive member?), requires activation on specific carriers, is a carrier-specific device, and requires a financing agreement with a credit pull.