I dunno, what if you have parent's who aren't 420 friendly... does that mean you can't have nice glass?
What if your hungover as fuck and ur idiot friend is whining about it being dirty and you break the thing cleaning it?
What if you find a binger in Cali that reminds you of one yo had growing up and mail t to yourself and it breaks (postal insurance is OK but it still sucks.)
I know kids who never broke glass and still have all 10 of the bongs they had since HS...but thats someone whose parents let him blaze in the living room.