You'll know the answer then. I used to daily both of my Zs until the Turbo started getting close to 200k and I picked up a Pathfinder. Not driving the Z for a while really amazes you that time you get back in. You've heard it before but try it out.
If you're in no dire need for the cash and the car is paid off, you have nothing to lose. Drive it to a quarter tank, disconnect the battery (or trickle charge it) and put the sucker in the garage for at least a month. If you don't fall in love again, sell it.