For many companies you need a resellers lisence or a wholesale buyer's license. Before I would purchase yarn at wholesale I would have to either make sure it was a yarn I really liked or have projects enough for it OR I could purchase it in multiple colors or if it was "natural" so I could dye it. It isn't a very good price if you are just going to hoard it. Having a stash is fine as long as you have projects for what you have stashed. Otherwise it is a hoard and as most pirates will tell you, it doesn't matter how big your hoard is if all it does is sit in a cave. If you are going to raid and pillage but not spend you are just as poor as the people you pillaged from.