Bloody Marvelous
Contributor
I'm not familiar with Ratio dive computers, but they seem to have a wide variety of combined options between them. I'm assuming they have an upgrade scheme if you want to add more options, and you don't need to replace the one you have with a new one. I know Divesoft does the same thing on their Freedom computers.I just ordered RATIO IX3M2 GPS Ratio Computers Europe - Ratio Computers
I get that it provides a lower entry threshold for new buyers, and you only pay for what you're actually using, but deep inside I always feel cheated when the manufacturer locks you out of certain options and you have to pay extra if you want to use them.
It's like buying a computer, and having to pay extra if you want to use the USB ports.