Yeah, another vote for the Aeron. I have a couple that I've owned for well over ten years. I definitely consider it more of a "durable good" than the store-brand chairs.
Only complaint is that, apart from replacing the wheels, they're difficult to repair yourself. The seat broke on one a couple of years ago. I bought a replacement seat only to discover that it's held on by a couple of strange custom bolts that you can easily destroy if you try to wrangle 'em out yourself. Thankfully there was a Herman Miller place in town, and they were able to install the seat for me.
Yeah, I have an aeron and have had it for many years. Got it used for 400 I think and it's been a much better chair than the 100-150$ ones that you buy at staples every few years once the padding goes out. Mine is still going very solid and I use it every day and work from home.
Only complaint is that, apart from replacing the wheels, they're difficult to repair yourself. The seat broke on one a couple of years ago. I bought a replacement seat only to discover that it's held on by a couple of strange custom bolts that you can easily destroy if you try to wrangle 'em out yourself. Thankfully there was a Herman Miller place in town, and they were able to install the seat for me.