Why not profit from selling replacement parts? I don't mind paying for the parts.
My problem with them is that they're pushing me to throw out a perfectly fine 2/3 of a chair just so I buy a full new one?
And it's not like they don't have the parts, they do offer replacements if you are a customer, so they can't even use that as a defense.
To have a point of comparison, I bought my Corsair Road Warrior T2 ages ago, used from Amazon.
I had some issues with it twice and Corsair were more than happy to help me, twice, free of charge, despite me offering to pay for the parts.
Now I know Corsair are on a completely different level when it comes to customer support, but I feel like asking for a replacement part, that I would pay for, is the bare minimum a company should do.