Just priced it complete.  9760 with '07 1293 head: $3800.  The software alone is $2600.  I've been autotracking the combine for two years and it works great.  Occasionally I have to shift a little and thought Rowsense would eliminate that.  But, for four grand I don't think it's necessary as long as everything is straight line auto planted.  Sure would be nice for guys planting curves though.

 If you have an '08 612 head you won't need the retro kit which would cheapen it a little.  But it will still push over $3K.