On a related note, something I find dismaying is the replacement of natural stone with "printed" ceramic tiles to mimic it, that cost about 85% of the real thing. (and about 95% of the cost of natural stone after installation). Like... WHY is that necessary?
My main source used to be southerlands - was awesome for granite, marble, etc. Now, even they don't have a single natural tile. None. Problem with ceramic vs natural stone is the surface of ceramic isn't "lifetime", it is possible to wear through it in super-high-traffic places - like commercial.
Now there's commercial tile places that can still get it on order at like 300% rates.
And I have a hard time imagining natural stone going out of style, ever. Granite/marble tile still improves values and people think it costs more than it actually does. I did a full wall-to-wall bathroom in black marble (with white streaks) once, which I LOVE, now it seems like I won't be able to ever again :/ there's also a depth to the crystals that printed ceramic can't mimic. /// sigh // end rant.