At the end it is what you want and what you can pay. AND it must fit your personality. There is no cheap technical diving, but sometimes you really can save money by doing it with instructor X or in country Y. Best value for money. Also it depends where you take your course. I have travelled all over the world for my courses, but sometimes helium is cheaper in country X than in country Y and then it is better to travel to a cheaper helium country. I did courses with DIR instructors and completely non-DIR instructors. It gave me a broad view of what is possible in technical diving and what I want and what I don't want. It also makes that I can dive with really almost every diver, bad trained or good trained, DIR or non-DIR. I understand standarizing, and non-standarizing, best mix vs standardgases, ean80 vs 100% and know advantages vs disadvantages. If you are interested in sidemount or rebreather, remember: also this can fit in the DIR filosophy, even if you dive it the standard way (ccr 3 liter cylinders to have less weight and less drag, more streamlined, or sidemount with steels, or other rigs), good DIR is also wide seeiing, DIR doesn't mean being a horse with blinkers.
So choose what fits you. And stay current after the course, practise, try to improve your level, even if you are certified.
So choose what fits you. And stay current after the course, practise, try to improve your level, even if you are certified.