I went with the more economical option; I am not insane.
$49 versus $445
It is quite the price jump from the more economical version to the more premium, though I would not necessary even call it that, version. 49 dollars is actually the markdown price, down from 99 dollars; catch it on a good weekend for an additional promotional percentage off.
The former is available in white and black, as well as tall size range from small to extra extra large. The standard size range is also available in as small a size extra extra small.
Fabric-wise, both dresses are one hundred percent cotton, though the trim on the more expensive one does look more intricate and delicate. The care of the less expensive one is recommended as machine wash cold, while the more expensive one has hand wash directions.