Herman Miller Aeron chair. Bought it used 20 years ago and I could sell it for more than that now. Still looks like same condition when I bought it. Dragged

Herman Miller Aeron chair. Bought it used 20 years ago and I could sell it for more than that now. Still looks like same condition when I bought it. Dragged it from one gig to the next instead of accepting the crappy office chairs. Major impact on lessening fatigue and productivity.