Servo city has them for $20.99, not a whole lot of money to save that kind of weight. I mean a Hitech 425 is $15 so its worth it (or at least thats how I am going to justify it to the GF).
An investment.
I already have the duralite battery system I bought just for it and the graph tech CF gear so why get skimmpy on saving the weight with the servos.