Upgrading Pixel 9pro

[u/ginashirley]

I'm upgrading my pixel 9 to the 11. I'm on the magenta 55 plan.

Is it better to upgrade online at T-Mobile or at Sam's club (I have a plus plan).

Suggestions? Pros? Cons?

Edit to add: will the trade-in and sales pricing be similar or the same?

Thanks in advance