New Peeve: The homogenization of cultures. World travel was infinitely more interesting, before the Internet, Hollywood, Television... which have all contributed to a cultural "white bread" homogenization. Even comparing the 1990's to today, which wasn't all that long ago, other countries and continents were far more different and interesting, from our own.
Today, with everything all over the world made in China, and American media and entertainment circulated worldwide, even far-off places end up looking, feeling, and sounding much the same as home.
Anyone remember flipping through 1970's National Geographic as a kid, and thinking the world was so much more varied and interesting, than today?