t-mobile phone prices (w/o contract) same for all retail locations?

[marchdatwo]

I'm currently with T-mobile and want to buy a phone without extending my contract. I am willing to buy the phone at the retail price, but I was wondering if that price would be the same at any location.
Last time I bought a phone with an extended contract for a lot cheaper at Sam's Club compared to other locations, but I'm not so sure about prices for phones without contract extensions.
Any help would be much appreciated.
Thanks.