Hey guys, was looking at the various tiles to figure out which one I
wanted as a bathroom floor. (I understand granite is the way to go
for durability, but humor me for a moment.)

Contractor's Warehouse has marble tile. It's thick; maybe 5/8-inch.
Lowe's has a marble tile similar in appearance. It's thinner at
1/2-inch, but it's about a third the price and is listed as marble
chunks held together with resin.

Is the resin treatment sheerly a cost savings measure or is the resin
there to help make the tile resistant to etching and/or soaking?