I strongly encourage everyone to vote Yes for proposition 29 which appears on the June 5th ballot.
If you'd like an unbiased assessment, BallotPedia is a good reference.
If you care about trying to improve people's health and stopping the huge drain cigarettes place on our economy, you should vote for it. If a $1 tax on a pack of cigarettes discourages a kid from starting smoking and helps provide a cure for cancer, how can this be a bad thing?
If you just look at the list of opponents (big tobacco) who are contributing funds to opposing the vote, you should be convinced that this is a good thing.