...continue repairing it and hope for the best in 5 yrs? continue repairing it and hope for the best in say 5yrs?

Locatio, Location, LocationIf you house was worth little before the flood, let it go.If your house was worth something, then stay and repair it.

I think that one should consider the safety of the area. This could happen to the area again if the damns and dykes are not properly taken care of. They didnt do the job they were designed to do before. Will they again? It really depends on you, the area you are located in and how safe you think you are. I personally would move north some where but I am not in your shoes. Good luck!