What machine did you get? I just got a Babylock Espire and experienced a similar dilemma. So I signed up for the classes (had my first one last Monday) and cleaned my sewing room. THAT took a while. Now I am ready to go again.
When I hit the sewing blues, I usually look at the pictures section here and get inspired. Or I look through my magazines, find a pattern and make a plan. By that time, I am ready to sew again.