The $100 chair is much more comfortable. For one thing, the seat pan is padded cloth instead of mesh. Even my coworkers prefer it, so we outfitted the office with the $100 chairs, and nobody wants to sit on the uncomfortable $800 Aerons.
https://www.amazon.com/gp/product/B000Q5XTE8/ref=oh_aui_sear...
It's the Hyundai of chairs: 90% of what an Aeron is design-wise, but also more comfortable.
Not sure why it has four stars, it had 5 out of 5 back in 2012 when I first discovered it on Amazon, but then I think the listing got removed and then re-added, so all of the reviews went away -- to say nothing of the later explosion of fake reviewers at around 2014 or 2015 that completely destroyed the credibility of Amazon reviews.
So trust me, and take the $150 gamble. :)
I lost weight down to a BMI of 22 and still appreciate a mesh seat.
My Aeron is still one of my favorite purchases (and I paid full price for mine over a decade ago, I don't regret it).
I'd recommend buying an expensive ergonomic chair from Craigslist or an office furniture liquidation company. You can pick up a great chair at 1/3 the retail price. You should be able to find a Steelcase Leap V2 for $200-300. Then make sure you download the user manual off the web so you know how to configure it correctly.
I used to do the $100 chair every year or two thing too. Then I bought a Steelcase Leap (for considerably more than $100), and while it's only been a year or so, it looks and feels as good as when I bought it. I would have loved to have found one for $200-300, but even buying new it was well worth it.
It's just a crap shoot as to whether or not the fixed adjustments of the cheap chair will match the settings you would select on an adjustable chair, and if the materials are fine for your size and weight. If they do, hey you got a great deal on a decent chair specifically for you.
I'm a pretty light guy, and I think I've only owned two <$150 chairs since 2002.
> adjustable seat pan depth
Which the Aeron doesn't have. I don't think any Herman Miller chairs do, actually; Mirra has an option to not dig into the calves quite so hard, but that's it.The Mirra's "seat depth adjustment" looks like it isn't quite the same (looks like part of the front of the seat bends to provide that adjustment?).
Pretty much this. I picked up a used Steelcase chair (don't remember the model, but it was listed for $800 new when I checked) for $65 at an office furniture liquidation company and it's the best chair I've ever owned.
Buro Metro is highly recommended ergonomic chair in Australia. 10 years warranty. I think I paid $250 AUD which is less than $200 USD.