Buy them from ebay direct from America. You will save a packet especially if they post them and make them look like a gift. You can get them for the same price as the cheaper Ariat boots.
I got 3 pairs from holmstead saddlery when they do their "equestrian sales" all over the UK. 1/2 price £75 a pair. The fairs are advertised in HH on double page spread now and again