why the hell are co2 generators so damn expensive?

Come on, it's just some burners and regulators, no need for a 300 dollar price tag.

I saw someone here on RIU that was using an instant hot water heater as a water cooled co2 gen. I think I'll go that route for 120 bucks. http://www.squidoo.com/eccotemp-l5-portable-tankless-water-heater-with-shower-head