For me I would consider selling if it would change my life significantly and I was looking for that change. That would take me selling my entire collection, should I decide to buy a cabin, or another few houses to start renting them out. Otherwise I still enjoy trying to fill out the sets I’ve sought after, although I’m getting close to the end on them.
I would likely try to sell all in one large lot, which has proven to be very hard outside of Twizzer, so I’d have to do some pretty good marketing to get it out there. These new comic money collectors have the funds, just not sure they would be interested in CIB, even though it would be full system collections for the most part.