Well, I called Sig Sauer today and they made me feel like I was nuts. They told me that the specs indicated that neither the 2000 or2200 had the Lumatic display and that that would just eat up the battery life having it constantly monitor and change to light conditions. I swore it states it on the box and I could of swore that my old 2000 had the Auto feature during the set up for brightness. There is no recognizable difference between the two except for the smaller reticle and internal programming that the user would never notice???