I wonder how accurate the prices are because sigma has their 70-200mm f/2.8 priced at $1199.

http://www.sigmaphoto.com/product/apo-70-200mm-f28-ex-dg-os-hsm

http://www.amazon.com/Sigma-70-200mm-2-8-Telephoto-Canon/dp/B003HC8V9A/ref=dp_ob_title_ce