Toys R Us is currently running a sale on several of the Equestria Girls through October 25th. Dolls including Zecora, Photo Finish and the Snapshots, Equestria Girls That Rock Dolls, and Rainbow Dash Radical Hair Doll are all offered at discount prices. The Equestria Girls that Rock and Rainbow Dash Radical Hair Doll are offered at $10 off their retail prices and are described as being "Red Hot Deals" and are limited to 2 per customer.
I already have the Zecora and Photo Finish and the Snapshots set, but I need to consult my want list to see if I am missing any of the other dolls that are being offered. Good luck and if you do manage to get one of these dolls at a bargain price, let me know!