I've been buying S30's and scrapping rotten S30's for the last 35 years. I still find uses for some of the first parts I ever removed back in the mid-80's. When I was young and started hording Z parts, I stored them in my dad's basement and garage. When I entered the workforce, I moved out of state and started a new collection of parts. A few years ago, my dad sold his house and moved to Phoenix, so it was time to gather my parts and bring them back to Michigan. It took a full 24 foot enclosed car trailer to get everything home. Needless to say, my garage is rather full now.
My current plan is to sell cheap or give away parts I don't think I will ever need to local Z owners in need. If I can keep another Z on the road and reduce my clutter at the same time, I'm happy.