I have an Ikea chair, nearly a decade old, and based on GIS, I think it probably was a TORKEL, (or a RENBERGET, I can't tell the difference) which if it were in

I have an Ikea chair, nearly a decade old, and based on GIS, I think it probably was a TORKEL, (or a RENBERGET, I can't tell the difference) which if it were in stock would probably be between $50 and $70. I've had an Ikea desk for the same amount of time as my chair, that is probably more or less an ADILS, currently about $25 ($9 for the top, $4 for each leg). While I have had some brief back issues, they went away, so I haven't been desperate to find a better chair, if there is such a thing.