[Borborygymus]

You forgot all the other prompts that ssh might produce before the password prompt (e.g. add new host to known hosts yes/no). There are more possible prompts than most people realize.

[penguin_booze]

This isn't a script that we'd send on an unmanned, inter-planetary, mission. This could be something that can save the tedium of typing password on a daily basis. If it fails, well, we still have a reason to be alive: press ^C.

[hiAndrewQuinn]

Darn. If only there were a tool that can interactively answer prompts...

[lo0dot0]

You can skip the new host prompt with ssh -o options.