I was thinking about saving my lungs from another 30-40 years of regular toking by investing in a vaporizer or a smokeless pipe. WHenever I get high on a regular basis I end up hacking up my lungs. My wife complains about a sore throat. Unfortunately I have never actually seen either one of these devises. (just on the internet) Does anybody have an idea whether or not these things work? If they do, how much dough buys a respectable unit? I have seen them online going between $10 and $650 dollars. Seems like a lot but if they really take all of the negative aspects of Mary Jane, maybe they are a good thing. Any one out there using one of these things?