I am close to putting my first novel away in that proverbial trunk. It's had a good run. The concept has been met with enthusiasm, including plenty of requests to read more material, but despite many edits, I'm not sure it's there. Since I can't wrap my head around what "there" would be at this point, it just might be time to tuck it away. I'm not alone. Plenty of writers have done the same and have lived to blog about it.
I enjoyed reading these two perspectives on lessons learned from their trunked novels.