You don't think it would have anything to do with the ESLs needing a dedicated room, special amplification, costing a lot more, and being much rare, would you? Along with most of the vintage ESLs needing some sort of repair work to bring up to snuff.
It's true. 6 ft tall min, but something like this is better:
I need to take a pic of me + my speakers. I've been saying it all along with all the 'stat headphones I've owned, and I'll say it again with my Acoustats: if you think 'stats lack bass after hearing them there is something wrong with your hearing.