I have a metal pipe myself.. its my dads, he says he bought it in california back in 76'.. but I have a 14 month old glass bowl that I like to use... however it does have a hairline crack so I would have to go looking for a new one shortly.. a thick one this time... money's not much of an issue for me, and I actually enjoy buying new pieces.. something new once in a while instead of my 31 year old metal pipe