Wanting...this little black dress

I actually don't have a little black dress in my closet. I know, this is a tragedy! The LBD is absolutely an essential in every woman's wardrobe. It's just that I never found one that particularly caught my eye or left me feeling breathless. Well, I found one that finally took my breath away.
I was randomly surfing on Forever 21 (I like to torture myself with images of beautiful, cheap clothing I can't go buy because I'm studying), when I came across this beautiful Grecian styled dress. The beauty and simplicity of the front already had me hooked, but then I saw the back...

...and oh snap! I frickin' love dresses that have surprise details in the back! I loved it so much, I had to bookmark the page. And for the first time, I'm considering buying a dress online and from all places, Forever 21, the mecca of cheap (in both construction and price) clothing.

The dress retails for $22.80 not including s/h, and is made of 96% rayon and 4% spandex. I normally don't have a problem with the quality of my Forever 21 clothes, but then again, ordering online? Especially from XXI without trying it on or seeing the dress in person? It's a bit of a hit or miss, don't you think?

Ayah...what should I do? I lurve this dress, but what do you guys think?