That kind of exmaple can vary, if you are somewhat in touch with trends and you are not obsessed with them, no you don't have a problem. But....
If you are always on beat with trends and you lose sleep and get grey hairs over them, you do have a problem.
About the dressing up as a characters, almost the same thing. If you dress up once in a while, like for Halloween, you don't have a problem.
But if you wear your Spiderman costume everywhere and seem to lose your socal life, you may have a problem.