Ask HN: Do you prefer portable versions over installers?

Do you prefer portable versions over installers under Windows? I highly prefer portable versions for any program, if it does not require some kind of beneficial integration with OS.

Just checked, I have only Firefox, VirtualBox and WinRAR installed, everything else is portable and 1) can be easily moved to another computer, often with settings 2) survives OS reinstall, because resides on another drive.

Am I crazy paranoid? :-)