Just like tennis, follow through is important in knitting.
I dream of projects that will probably never be knit... sweaters from vogue, thrumbed mittens (mittens with fleece woven in for warmth), head band for my manly cousin, capelet for around the house... and the list goes on.
I was reading Kim Salazar's blog this morning wherein she is thinking about her next Christmas present project. When I read her blog I just know she will follow through with the design and completion of the flip-top mittens she is contemplating.
That's the difference between a productive knitter and a knitter like me - a lazy knitter.