I don't have the space to keep every one of my Cats stored perfectly and I like to see them in action as long as their not getting hurt.
I asked a friend this year to pull my grader around but he didn't want to scratch the paint off his drawbar
Some people spend hundreds of hours restoring a machine only to unload it and park under a tent and stare at it. I have another friend who has several perfectly restored crawlers in his building and they all have the oil drained so they don't stain the floor.