I’m retiring the beginning of 2021 and had the same dilemma. Didn’t want to move since we spent a lot of effort getting things the way we wanted. Any more than two pins was going to be a problem plus the setup didn’t allow for long term projects.
My solution was to buy a man Cave. A 48 by 20 unit with a 15x20 loft, climate controlled. About 10 minutes from home. Not for everyone but better than moving houses. Had 2 pins when pictures were taken, up to 4 going on 5. Still have 2 at home. Plan to swap machines between house and Cave from time to time.