I will say our public transit is not the best and that's due to voting patterns and racism /  myths about crime.

But there are some fun patterns here.

I have done lots of tile myself (including alot of marble) on floors and tub surrounds and shower enclosures.  

Two thoughts, both of which have to do with using quantitative vs. qualitative data: Numbers are good for discerning patterns and making high-level comparisons, but don't (can't) really tell the on-the-ground story.

You are not going to put in a farm sink and marble if you're no where near a farm and your neighborhood is filled with Millenials.

The color and pattern selections make it easy to design with.

There have definitely been patterns, city and area-wise, and I've learned a lot so far and plan on doing a lot of research.

The vanities were in bad shape, so we have already bought some upgraded vanities with real marble* tops and new faucets, but not sure if we should also do a major remodel to replace the dated 1980's floor and wall tile, "Roman" whirlpool tub ("bone" colored), "bone" colored toilet, and acrylic shower stall.

You can see patterns emerge.

See a pattern here ya'll.