Some people have criticized consciousness-altering drugs on the basis that they effect our perception of reality, but what is actually wrong with wanting your perception of reality to be altered? Don't all forms of art, music, theatre, etc. present us with a transformed version of reality? And in other sense, isn't the hallucinatory experience of a drug-user just as valid and genuine as the sober experiences of another person. Is it fair to say that the sober person's experiences are in some way "more real"?