They're mostly to look cool... I think... Butthey also help see what kind of blood is on your arrow if you get white wraps but other than that they are just to look cool.
Nope.
personalization.....and being able to tel what kind of blood....other than that theres not realy a need or real big "use" for them beside to personalize yer stuff
Nope.
Other than that, wraps really help aid in seeing yourr arrow in flight. Because of this, you're better able to see where you hit before the animal takes off as well.
Yep.
But the MAIN reason I put 6" wraps on my arrows is.......I use reflective material. It makes them WAY easier to find in the dark (shine a ight in the area) and once you find it at your POI (or on the trail) I stick the arrow up in the ground and use it for a point of reference while I'm tracking. I can shine my light back along the trail to get my bearings and see the reflective wrap, with ease.
Nothing wrong with using them for personalization purposes.....but mine serve an even morevalid purpose.