Timely thread as I'm buying a reg set in the next couple weeks. I've been going back and forth on DIN v. yoke, and if I'm being honest I was leaning toward DIN. Not because I have tanks with DIN valves, or because I'll be buying any in the foreseeable future, but just because "what if, someday...". If I'm actually being practical, being in the US, renting tanks, and probably mostly diving in the Caribbean, there's no reason to get DIN. If I ever get to the point where I'm diving so often in my own backyard and want my own tanks (say, in ten years when I hopefully retire to the Keys), I'll treat myself to a DIN set then. For now, though, logic says yoke.