Keep it...or sell it?

[Longhorn Man]

For a while now, i have known that I will have to sell the GMC one day, once the longhorn is on the road and proves to be dependable. While I do kinda hate the old POS turd, I guess I have grown attached to her, and in reality, I don't really want to give her up.
Last night, the wife actually said something that shocked the crap right out of me, she said that we could probably get historical tags for one of the two trucks (a one time $25 fee) and drive the other. She did say that i can't expect to put much...if any $$ into the parked one, but doing this would keep it legal, and no one could say a dam thing about it.
However, on the flip side, i have a few problems with doing this.

1. We have all met the guy who has the SWB truck sitting in the back yard rotting away and he won't sell becouse "I'm going to restore it one day". I don't want to be that guy.

2. In all reality, I could take the $$ that I would get for selling the GMC, and pour it all into the Longhorn, and into my tool box. (I DO need to buy some tools)

3. I have room for it, but not realisticly. I live on a narrow street, and do NOT like parking on it, and the driveway is too short for all 3 vehicles. As it is, the GMC is on the curb, the Longhorn at the top of the drive, and the wife's Contous is actually partially blocking the sidewalk.