I enjoy it also. Fireworks from all over the world are great to see. I particularly like the good useage of comets and mines spraying in fan shapes with such good timing. It also seems common with the Caballer Spanish firework companies, but this has not really caught on yet in the US to spray mines and comets like that.
I am also a fan of the Farfalla shells, which are nicely done by the Italians. I wish I could see more European fireworks designs here, but we mostly only get to see Chinese round shells. These can be nice, but it generally lacks variety unless you get into Yung-Feng or other expensive oriental shells which seem almost as rare as imported European or domestic shells. It's a competetive market here, I guess that is all there is to it.