I was annoyed yesterday when Apple gave the baseline MBPR more configuration options after I got mine. A $90 upgrade to 2.6GHz on the education store! I called Apple hoping if I could exchange for a higher configuration and the representative said no. My order was placed on the online store on June 14th and it shipped on the 29th. It's the 2.3/16/256 configuration. A replacement was then shipped on July 12th due to the display humming and the bottom cover creaking. Today, Apple called back and allowed me to return this machine and place a new order on the 2.6/16/256 configuration that I want. Awesome!