I hear you, that's another thing that has plagued our industry. Most of the time a regular select box is fine, but sometimes you need to have images or something more in the options (colors, etc)
None, probably, but these days it's de rigeur to spend half a (web or mobile) project's budget making sure even the select boxes are "on brand" and "delightful" or whatever. Often at the expense of usability.
How many end-users complained what a select box is not styled?