||I kept my Z and it's finally waking up after 6 years of sitting in the garage. But I have 4 children between the ages of 6 and 11, so time is a precious commodity, and when they're young there are other priorities :-)
I don't regret keeping the car even though it hasn't moved in a long time.
And sleep is NOT overrated - don't believe the hype. Do what you can to get adequate rest.