On 08/10/2010 2:59 PM, Bryan wrote:

> Downside: You'll get bored some time and use up all your cartridges
> (which are expensive) and there won't be any when you want to use the
> thing for its intended purpose.


Years ago I had a seltzer bottle and found the CO2 cartridges to be
outrageously expensive. I found a restaurant supply outlet that sold
them for a fraction of the cost. They also sold N2O, and I imagine
there would be comparable savings with that.