It would be great if a libertarian got appointed to the court, but it isn't ever going to happen unless we have a really cool president. Libertarianism is pretty much great except for the whole legalization of pot thing (caveat: unless the welfare state is gone permanently, then Id be for it, I just dont want to subsidize some addict).
You wouldn't be. In fact, that "addict" would likely have more money available to him as a pot legalization would probably drive the cost of the plant down considerably.