Lots of good opinions in here about either plastic or glass. I wonder why nobody has mentioned how the amount of homebrew consumed during a brew day might directly affect the chance of broken carboys. Just a guess, but I would think the two are directly related.
I use glass for now. Guess I haven't drank enough on brew day to switch over to buckets. Although, you guys have me seriously thinking of how easy it is to clean a bucket after primary as opposed to glass. Cleaning carboys is a drag!
justin