Hubby had a big coffee cup that was plastic. I switched him out to a great big glass one (anchor hocking IIRC) that I found at WalMart for 2 bucks or something.
He actually likes the glass one better because the glass is a better insulator than the plastic and his coffee stays hot longer.
I like plastic because it doesn’t break if it gets dropped and plastic cups hold ENOUGH ice tea or water. Gonna have to change.