You probably know what color contacts are by having read of them or maybe you've seen (probably if you've seen, you most likely couldn't notice him/her wearing contacts unless they were meant as unnatural looking) someone wearing them.
If you've only heard, you probably don't know what makes them so special, but if you've seen, you probably already have the idea.
Well for those, who are wondering why would one use money on them, I made a little list to show you few (of hundreds) reasons to use them.

1. You can get absolutely beautiful looking eyes
2.  Beautiful eyes will make your whole appearance look much more attractive and brighter
3.  Attractive eyes will boost up your confidence a lot and will that way help you with social situations (if you've problems in that area, like I used to have)
4.  People usually look your eyes first when you meet a new person, so you can impress them with beautiful eyes
5.  People usually look your eyes when talking to you, having beautiful eyes you can make it more enjoyable to talk to you
6.  Eyes are one of the most charming points of a human, so you can easily charm anyone you want if you have attractive eyes
7.  Natural looking color contacts are nowadays part of everyday fashion just like make up or fashionable clothes
8. If you're using unnatural looking wacky contacts (i.
   e.
   vampire or cat eyes) you'll be the center of attention at costume parties/Halloween for sure
9. If you're thinking of doing role playing (i.
   e.
   cosplaying anime/manga or game characters) having character-fitting eyes will definitely make you one step ahead of others (using Sharingan contact lenses while role playing Naruto is quite popular)
10.  You can easily buy them online and order them to be delivered to your home

Well there you have few reasons.
They're kinda cool, right?