So if you ever get your place recarpeted, it's worth the money for the thicker layer of insulation. It is just so much softer to walk on, and maybe provides a tiny amount of padding in a fall.
Sometimes if my bed feels wrong for reasons, I can sleep on that extra plush carpet no problems.
I set up a spare bedroom as an office, so my rolly chair goes on one of those plastic carpet protection mats. I hate those mats so I put another carpet on top of it. Chair rolls great, it's not ugly visible plastic, and it's really easy to clean up spills right there.