Bash has also come a long way recently. I suspect a lot of the excitement over zsh comes from mac users who are stuck with what is now an ancient version of bash.
as long as bash doesn't get the terminal sizing 100% right all the time (and thus display proper entry line/prompt all the time), I'm not going to use it. It always happens eventually, if you spend along time in the shell. There used to be a myriad of little bugs causing this.
Not sure how many are left now.
I spend pretty much all day every day in the shell and haven't had problems like that in a long time. I think maybe because at some point the checkwinsize option got turned on by default, at least on ubuntu.
