Don't ask yourself how cheap of one you can buy, ask yourself how much money you are willing to spend on something nice to smoke out of.
quality over price, do you want to spend 20 on a piece that will not hit smoothly and break cuz its thin or spend 50-70 on a really nice piece
damn you got that for $13? Looks pretty decent. I have a tiny ass bubbler and it is not worth it...the bowl is too small and it's a pain to fill with water when it gets ressed. I had a larger bubbler but it broke
I got a thick $15 mini bubbler a couple months ago, nothing fancy, but it suited me. It got stolen a week later along with my pipe, grinder, my friends bubbler, 2 bongs, an xbox 360 and a laptop. I miss smoking under the stars on my cot every night out of my bubbler