The GAP is one of the possibilities for us this year. Pittsburgh is only about a 5 1/2 hr drive from here, so that would be a good starting point provided I could find secure parking for a week or so.
We were just tossing ideas around earlier today about where we want to go this year. We have not ruled out Europe. We've done the Danube from Passau to Vienna, and a bike/boat tour in France. I'd still like to do a bike/boat tour in Belgium and the Netherlands, but I can't seem to get my wife too excited about that.