Well. Bubblers are more convenient because of their size, they still hit very well, but not as good as a good sized bong.

If you have to hide it, get a bubbler.

If not, get both!

Also, $30 for a bubbler is a good deal, I paid over 50$ for mine. Kinda wish I had gotten a bong (since the store actually has those cheaper) but it'd be too hard to hide a bong and its a great bubbler so I don't mind.