Guy I worked part-time for in Nashville collected B-3's. We'd knock off work some afternoons to go pick one up he found a Craigslist deal on. Or sometimes a Leslie cabinet. Yeah, them things were heavy on my 26 year-old back. I seem to remember he had Fender Rhodes in his studio too though.
This same cat ran a business... we built custom road cases. One of the strangest ones we ever built was for a Hammond. It was on a casterboard, and had a clamshell lid, but the end of the case opened up and a ramp for the thing to roll down folded out. Fair to say, he'd been a roadie, learned a little about working smarter...