I have never built a sewer, and I doubt that I ever will. Likewise I very rarely build neighborhoods. I suffer amenity shortages much more often than housing -- I build wide, with lots of workers to improve the land. By the time housing starts to limit, I've largely grown onto all of my land tiles anyway. Adding pop would just mean working a terrible tile (unimproved coast, desert hill, I might even have to run specialists). I tried shopping malls once for a cultural victory, figuring out just how insignificant their tourism is. Food markets look just as bad
I find the bank and stock exchange to be too weak, except possibly for Eurekas. The second and third tier govt plaza buildings don't impress me, unless I really need to faith-buy an army; but they do give governor titles, and that's usually worth it anyway.
I will defend the amenity buildings, but recognize that most of the value comes with the last building, powered.