>"It has nothing to do with "comfort." It isn't a luxury feature in the same vein as a complementary back massage, hot flannel, or free alcoholic drink. It is what people need so they aren't in physical pain for the duration of the flight."

I'm not in "physical pain" from the seats as they currently are. The key qualifier that you should add is "some" and replace "need" with "want", perhaps even "feel is necessary". Neither of which apply to me. I neither want more space, nor do I feel it is necessary for me in any way, hence why I suggested you change your view on the matter by adding the qualifier "some".