Longing for a new couch

Dave's couch has been very good to him over the past several years. There have been many good times, times Dave will remember for the rest of his life.  

But there are times when he looks at the couch, which is really a futon, and thinks to himself, "This couch has served me well, helping me develop countless legendary napping strategies. I would not have traded my time with this couch for the world, but perhaps I have gone as far as I can go with this couch. It may be time for a replacement, a new couch that can allow me to reach even further into the depths of greatness."