I always recommend to buy DIN with a converter. In this way you have the best of both worlds. And I also recommend 300BAR which most DIN regs are anyway but in this way you can use 300 BAR DIN tanks, 232 BAR DIN tanks, or 232 BAR K valve tanks. You have all options covered and if you step into tech diving some time in the future you are already half way there with a 300BAR DIN reg. Future proof yourself.
If you are like I was, no way I am going into tech, well here I am some 6 years later tech. I had to buy 6 DIN adapters to change all my K valve regs to DIN permanently at $75 each. Had I future proofed myself earlier, I would have saved $450. I also had to sell all my K valve tanks and buy DIN. Once again if I had my first reg set as DIN, I would have only purchased DIN tanks, more saving there.
I have found that most dive centres these days have DIN tanks. On the occasional time they don't, well you have a converter to get you through.