Good suggestion for the OP if it works with their schedule.

But word of warning, if one is booking open dated segments on OW products later this summer or early fall for summer 2011 (as an example) they may want to stick with the DFW-ANC route as there is probably less of a chance of it disappearing for summer 2011 than ex-ORD flights. For 2 reasons, 1) the ex-ORD flight was reintroduced this year which means its future relies on a good results and 2) AA always has partner flights with AS ex-ORD for everything but xONEn and xCIRnn (if it is even possible within the mileage restrictions of a CIR ticket). Now this doesn't mean that AA would not drop ex-DFW ANC flights in 2011, but those flights have been around for a while and IMO there is a much lower probability on that occurring. There is always some risk associated with booking open dated segments for seasonal flights, or any flights with limited service for that matter.