People who let rare cars rot.

I have a Mopar friends from since back in the '80's back home. He is a house painter by trade, his wife worked, they had a small modest home right in the middle of town across the state line. He is a good bodyman/painter, engine builder, he can do it all..He like me was always dragging something home, but he would never sell a car or part. We traded an occasional part, I even traded him a 70 V code Cuda roller once back about '93 for a 68 GTX 4 speed car plus a few $. . He sold his place for good money as it had a little value as commercial, they moved across into Mo. as everything there is cheaper. They built a pole bldg. that was he, like 50 or 60 x 150 or so. They built an apt in one end. He wanted to build his wife a log home, but she wanted their home in their big garage! I moved to south Mo. in 2005.
He told me those cars /parts would be is retirement. I said my take on it is that the prices of this stuff will rise and fall how many times???? If you sell at the right time, good, but what if... and I told him, I am not sure you could ever make yourself sell it off!!
I try not to judge, but my opinion is my bud is basically all good....he is a collector, a horder, a car loving guy, and just a good person. People that don't really know him and all is circumstances might think otherwise. Don't know. He is my friend.