That's one option, but not everyone has £350 to spend on cables. (Especially when next year they'll all no longer be the full-featured-est around, there will be some newer thing only newer cables do).
G-d knows I would hate to spend this much on cables and this is not a negligible amount of money for me either but I would bear this if they wouldn't change the standard every year. USB 3 persisted for long enough, I really hope this hassle with USB-C will end and the things will stabilize for some years.