My 65 War got this from a guildie. I use it all the time. as a warrior you know that you will not be doing much damage with a bow anyway. this is perfect for Pulling, tagging agro off puller during inc tagging mob for rampage list. and best of all saving you from have to make or buy arrows. how many times have you ran otta arrows during the middle of a grind? this helps eliminate that. My war has 130 in fletching. i have since stopped the endless clicking to get 5 arrows at a time. the summoned barbs arnt good for anything other than freebe arrows. its like having a mage in a bag to supply you with arrows. basically a neat item that you will use often. the cast time is short, so you can get a bag full of arrows quickly. if 5K is steep for your price range...do some LDON and win it. its fairly common drop, prices in bazaar should reflect that now. Good luck and i hope you enjoy it. i use mine and dont ever see selling it.
This item is not too expensive from the bazaar, considering:
a) you don't have to spend lots of plat to have the skill to make magical arrows
b) you don't have to spend lots of plat to make arrows once you have the skill
c) as a point of convenience, this takes one reagent for 20 arrows, rather than 4 components for 5 arrows, and there are no fails. This will save space in your inventory.