I bought an used fully loaded Aeron for $320, delivered, on Craigslist 2 years ago. I wasn't sure it would be worth full price, so used seemed like the way to g

I bought an used fully loaded Aeron for $320, delivered, on Craigslist 2 years ago. I wasn't sure it would be worth full price, so used seemed like the way to go. I wouldn't think twice of spending full price ($1500?) for one now. But I doubt it will ever need replacing... it was built in 1998(!!), like a tank. Some time later I bought a new gas strut for $50 (the old designs wobble) and some Atomdoc castors so it would glide over the hardwood floor. Adjusted it once when I first got it. Vastly reduced my back issues - though a chair is just one part of back care.