According to Best Buy, if you're buying an AT&T LG G6 from one of its retail stores across the US - thus not online - you can get it for $50 less (paying just $669.99 instead of the regular $719.99 price). This deal requires an AT&T Next plan, with savings being "deducted off the full total price of the device and reflected in reduced monthly payments over the life of the device."
Best Buy's deal doesn't exclude AT&T's buy one, get one free LG G6 promotion, and you're also entitled to get that free Google Home speaker that all G6 buyers are receiving (if the handset is pre-ordered or purchased before April 30). You can find out more details about the deal at the source link below, or in Best Buy stores.
Meanwhile, if you want to take a closer look at LG's new flagship phone, you should check out our LG G6 review.
source: Best Buy