Glass is good, I don't have a glass pipe personally but my friends have one. I despise acrylic... after awhile it degrades and breaks on you. I was cleaning my friends acrylic 4-person bong... it cracked down both sides. So now I have to try to fix it with clear caulking or something.

I personally have a little personal pipe made of bone, best shit in the world. Then I have a nice wood pipe, long stem... looks like it's right out of Lord of the Rings (it's called Shire). Also to round everything out, I have a ceramic water bong, with shotgun. I need a better bowl for that though, the one it came with is just too small.

I need to get pictures of my stuff.