I work for a US company. They've just bought all 5,000 employees new $2000 chairs because one person had back pain, blamed their desk chair and the healthcare policies for US employees went through the roof... Worked out cheaper to spend $10,000,000 on new chairs for everyone than to have to pay the 'tax' on an uncomfortable workplace. (this is a true story, but it's meant as a tongue in cheek comment at how ridiculous insurance prices are in the US) I don't know the economics of how it all worked out, I'm not going to question it.
Can I have your old chair, then, please? Got to be better than the pile of breeze blocks I have to sit on.