I did test storebought slow30 vs my epic slow30, average damage of 30shots to same target.
slow30 from store = 284.8average 100-124 +13
slow30 epic = 301.7average 108-132 +18 +11 +12 +13 +1dex
http://img841.imageshack.us/img841/8949/bowfight.png
as you can see, that epic bow is WAY better but damage is only ~17more
so if this goes like this to live, then

<- sad goat
It just makes variety of items/styles/players more "equal", but that is not good. because if somebody wants to grind 2000 hours to get good weapon he should be rewarded by good weapon, makes things too easy if one can just walk to market and buy item that is 90% of what best items are.
edit. now I tested same bows vs trolls, checked my calculations and storebought hits 10 MORE than epic, wtf :P