For Christmas, 2011, Mrs Aeronaut and i have decided to give our kids (& grandkids) a one-in-a-lifetime Christmas present.... Disneyworld 12/26-1/1. (yes, it is expensive!). There will be a total of 9 paying passengers going MEM-MCO 12/26, returning 1/1. However, I'm not sure if we would be better off buying our DL tickets NOW (K, L Fares available outbound, Q, H Fares on return). I don't want to lose what value exists in the current "economy" pricing, but at the same time I don't want to book now only to find later that lower fares have become available. I know from experience that there have been times when I've booked at a higher fare only to find later a lower fare open up.... and I don't know how DL manages that process.

We also thought about pricing AirTran out of MEM or Southwest out of BNA, but their fares aren't even available yet..... so I told Ms Aeronaut that I knew where to get good advice. Any suggestions would be most appreciated.

thanks in advance.