For me, I consider making 1st dan to be a Rite of Passage. I like to call the rank "1st dan" not "black belt" since the physical belt is not the actual rank, its a symbol of the rank. And the black belt is used for higher ranks too such as 2nd dan, 3rd dan, ect. Anyway, as I said I see earning the rank of 1st dan for the first time in the first style that you really get seriously into as a rite of passage. Another words, you could sat I see getting your first black belt as a rite of passage but I like to call it "earning 1st dan" rather than "getting a black belt" since that differentiates between earning the rank and having the physical belt in your possession which anybody can do simply by buying it at a martial arts store, ect. But I don't really care about rank progression beyond 1st dan as at that point I just like to keep training and keep getting better. But after that, Im for the most part with you. I don't really care about belt color or as I said rank progression beyond 1st dan. And if I start learning some new style I don't really care much about belt color, not after already earning the rank of 1st dan in a primary style. Right now I am training in Goju Ryu and in Brazilian Jiu Jitsu. In BJJ I've got two stripes on my white belt so I've been promoted twice since starting and in Goju Ryu I've got a yellow belt which is the belt right after white so I've been promoted once in that style. While it's nice to be promoted and while it would be nice to someday get black belts in both those styles, or to put it more accurately, earn 1st dan in both those styles, as of right now I am much more interested in learning the material.