I once thought I would never get tired of it and then all of a sudden one day I woke up and just didn't feel like quilting. I didn't quilt for a year. I just quit. Mid-project. I knitted, I crocheted, I painted, I played Farmville (LOL), and I didn't touch my sewing machines.
Then one day out of the blue I felt like quilting again and started up right where I left off. Still going, but who knows if or when it will hit me again that I don't feel like doing it.