Seven inches is my highest "regular" heel. I do have several pairs of ballets, but they are definitely fetish wear, unless you aspire to be like "Spook" who excels at extreme tightlacing as well as navigating in ballet boots.
Most everyday I wear 6" and to go out at night, 7"
I've looked for stripper type shoes for a long time for costumes. Any regular shoe over 5" and some that are 5" look like stripper shoes. Especially the ones that are patent leather. I don't know how anyone could wear 5" for a long period of time. My feet hurt from waring 3"!