I just got a good glass bong at my local head shop for $50. Its 18 inches tall with 7mm thick glass.It has a nice bowl, but it has a rubber stopper thing around the tube on the bowl piece and on the top of the downstem. It hits great, and is a good quality bong, but I dont see why people think glass on glass is so much better. With the rubber, it looks cheaper and lower quality but it seems to me like it's not much better than glass on glass, because it hits the same. So I was wondering, besides looking better, why is GonG so nice?