There are some codes around for big discounts on Big Y-700. They give $200 off (new price $449), and there is more if you have already done Y-67 or Y-111.
The codes come from a recent FTDNA conference and can be used for members of the R-U106 group for themselves and their friends. The are valid until the end of March 31st Houston time.
So if you are interested please contact me asap.
FTDNA have also published an introductory upgrade price for Big Y-500 people of $179 (full price will be $249). However I am not pushing this yet as I am not sure it will help in all cases. It would, nevertheless, be interesting to see the difference.