Merlin, I feel your pain! My last layout was in our Loft in NYC. Our Kids were going to Tulane and Loyola and we moved to New Orleans about 2 minutes after Katrina (long story). My wife and I agreed that we would stay for 5 years and then re-access. The kids graduated and then they alternately and separately moved away and then back to the attic apartment a few times each. About 2 years ago when one of the kids moved out again I jumped in and started to re-model the attic apartment... and now, the TRAINS get their day!
Be patient! And, when the moment comes... JUMP ON IT!