Define "outdated"
Since the early 90's, in general bindings have had two straps, a footbed, and a highback. They've progessed through the years but there's nothing crazy about the 2013 models to make them substantially better than 2010 stuff. If they're brand new and you like the price, why not?
Cobrasharks are okay, but I thought Cartels were a higher end binding? Seems like a no-brainer to me...