I get most of mine in the 1lb Nitrogen flushed HopUnion bags and Been very happy. I think Hoosierbrew was speaking toward some homebrew shops buying bulk, then opening that bulk package and repackaging them...... that process of storing open hops by a home-brew store may not be the best. I have seen that too. A small home-brew store buys 1 lb bags, opens them, repackages them, exposes them to oxygen, lets them sit out at room temp, and they are compromised.
I would rather take care of my hops myself. As soon as I open a 1lb bag, the remainder is vacuum sealed in a 1 quart mason jar and into the freezer.
As far as buying hops.... I have no problem buying a sealed 1lb Hop Union bag that is a year old.