I got to handle one just like it. I was impressed. Especially since they have a locked, gas operated action, instead of a .22 like blow back action that would have been a lot cheaper and easier for SIG to produce.
BTW, LGS price was a lot more than you paid.
The LGS here wanted $1759.00 for the whole set up without the 4 extra mags and tax on that. I talked to them and told them I was gonna get one online and he lowered it to $1400.00 but with tax it still made no sense and a three pack of the mags are $189. I can't wait to get it. I've been debating this for a while so I've been hoarding 124gr ammo.
"God created men and Sam Colt made them equal"