Input broadcast, for one. Insane customizability for another -- I have scripts that, in 1 click, can SSH me to all hosts for a service (dozens). That's super valuable.
The fact that you're talking about SSHing into dozen hosts and not e.g. pssh makes this whole story very suspect, or at least puts you into a category of "people who never really tried to get the most out of their terminal experience" :P
Definitely true, but I'm not on here defending the merits of the terminal!
I'll check out pssh. The cool thing about iTerm input broadcasting is you can turn it on and off rapidly, so you can start out broadcasting, stop for a sec to adjust one host, then resume. pssh looks like you'd have to establish a separate connection.
