I still consider myself a sapling, but what kind of bong has a carb?
Wouldn't that be more of a bubbler?
I think you are right (I always considered bubblers to be smaller, as they often are, but I could be wrong). Either way, if carfo wants a legit bong, he might be disappointed with the one he linked.
Glass connections are a must (the one linked does, which is good). I also have stayed away from soft glass and it can often be of poor quality (specifically if manufactured overseas). All depends on what you want, and more importantly what you want to spend.