Yes Philly, I absolutely do know the feeling. I had it a couple of weeks back with my old Epi LP. I was selling it to a friend, and hadn't played it since about June when I got my PRS SC245.
In preparation for selling, I got it out of the case, polished it up, put new strings on it, set it up and plugged it in to make sure all the electrics were still working...and ended up playing it for an hour, and wondering why on earth I was selling it. It was Mule-loaded and I never really gave it enough of a workout through my Mesa Express - but then i discovered it sounded fantastic. However, give that its replacement was already there, and I'd promised it to a good friend, I let it go. But if I hadn't known it was going to a good home, I might have been tempted to hang onto it. :roll: