Ok I've been following sodastream Japan website specifically the extra Co2 Canister sales. Over the last 2 months they have sold 1150 extra Co2 canisters.
Ok my calculation:
575 Co2 Canisters purchased per month Figure Website is 10% of sales So 5750 extra Co2 Canisters being sold monthly. Figure one in 3 Sodastream user gets an extra co2 canister They are selling now 17,000 machines a month with an average margin of $75 bucks a machine. 17000 x 75 is 1,275,000 profit per month american dollars.
At this pace which will pick up is 15 Million dollars a year profit to bottom line.
This work out to 18 american cents per Q. Not including the syrups which they charge 10.50; Co2 refill $25; etc...