Jungle CO2 Fizz Factory - any good?

Here's the set up I used to use:

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It came from this web page:

http://www.qsl.net/w2wdx/aquaria/diyco2.html
 
Bearing this item in mind http://cgi.ebay.com/ws/eBayISAPI.dll...m=260222982054
I was in PetSmart today, spending another hundred bucks I don't have on fish gear (Geez, this is an expensive hobby), and saw a ceramic air stone - wouldn't that do just as well, with a 'burst point' (just a push fit connector) inserted into the tubing in case of a blockage?
 
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