Sets of three, Butter nail colours, in lots of different colour combinations are £18.50, duo sets are £15.00, and sets which include a top coat, base coat and a polish are £21.00. Not a bad deal, considering they cost £12.00 for one bottle at Zuneta and Hq Hair!
The only slight snag with BrandAlley, is they wait until the sale ends before dispatching goods, so delivery does take a while. The estimated dispatch date on most of the Butter sets is the 1st of May. Still, there are some bargains to be had if you're willing to wait a while for your goodies.