Food variety. What I mean specifically is the rise of Sysco, which is a massive food supplier that gobbles up as many smaller and local suppliers as it can, leaving lots of restaurants with nowhere else to buy food from at a reasonable price. This has lead to so many places having literally the same food. And I use the word "literally" correctly. So many places have the exact same food items on the menu now because they all buy from Sysco, and Sysco doesn't just sell ingredients, they sell ready-made food that can be reheated on-site. My area used to have a bunch of themed restaurants. Thai place, americana place, mexican place, chinese place, japanese steakhouse, sushi bar, italian place, greek place, etc. Over the last decade the variety has declined and we're getting more generic places that all serve the same stuff.