Best Buy has open box Pixel 3 64gb for $400 and XL version for $510. These are YMMV and only apply if your local store has available open box. These are unlocked and don't require activation. To check open box availability do the following:
1. Go to the product page for the Pixel 3 or 3 XL.
2. Click on unlocked version.
3. Choose activate later.
4. Now you will see any open box options on the top below the normal price.
5. Click on the open box link, and it should take you to the store that have them in stock.
This saves you another $100 from the current sale price.
Link for the Pixel 3. [bestbuy.com]
Link for the Pixel 3 XL [bestbuy.com]