First, this sounds really cool! I was really into the idea until I got to here: > Cana will automatically replace ingredient cartridges (which should each last

First, this sounds really cool! I was really into the idea until I got to here: > Cana will automatically replace ingredient cartridges (which should each last around a month) as needed at no cost. However, you'll pay for the device's concoctions on a per-drink basis. Each will cost between 29 cents and $3, though Cana claims the average price will be lower than bottled beverages at retailers. The system also requires sugar and spirits cartridges — both of which are replaced automatically — and a CO2 cylinder. I was initially hesitant about the prospect of proprietary lock-in and oh dear was I right to be. By "automatically" I assume they mean, "this requires a network connection and runs the risk of becoming a $500-$800 paperweight," and frankly, the idea of paying varying prices for each drink just sounds bizarre and unjustified. If the technology in this thing is so novel, surely they have enough control over their IP that there's no need for this kind of pricing model or lock-in. I could, of course, be missing something of my own accord, but it feels like they're trying to hide or obfuscate something.