I have a 27 inch monitor and still prefer an 80 character limit. It rarely forces me to mangle code and allows me to have four different files open side by side. It's especially useful for frontend development where I'm going to be editing html, css, and javascript almost all at once.

This "hurr durr, we aren't on terminals anymore" argument is dumb. You aren't arguing with crotchety old geezers or people with stupid hardware choices. Quit assuming the people who disagree with you are idiots.