I am not sure I would call the Hylex overpriced, but they are currently the only player in the game if you want to avoid SRAM doubletap and Shimano STI 11spd setups.  I am running 10spd SRAM barend shifters currently with Avid mechanicals, but do plan on going hydraulic with the Hylex brakes down the road.  I have heard nothing about any other non-integrated shifter brake lever hydraulics coming out to compete with them.