Since you look to be located in the US, check some of the distributors and/or some key shops for good deals.
BayAreaKitesurf is the US distributor for F-One and Manera. Check out their Outlet page
CaliKites is connected to Boards+More and has good access to Duotone and Ion products. Check out their Sale page
Session Sports I believe is (or was) the distributor for RRD and has a good selection of Eleveight as well. Check out their Sale Page
Some of the US kite brands such as Naish and Slingshot can also be purchased directly. Check out their Sale pages.
Also check out smaller shops (w online) located in popular windsport areas like in Oregon, the SF/Bay area in CA, Washington, Florida, N+S Carolina, Texas. Too many shops to list, so you'll have to do some digging.