Egads, a buck a piece? I flinched, and more than a little, at paying $10 for a sack-full (80 or 90).
I turned down a vendor who offered me a 3x2x3 foot box for a c-note, mostly for not having room for the box, and only $60 in cash on me.
But, I'm very biased in this.
Mind, if you buy spam cans from CMP you get en bloc clips for free when you buy the ammo (if in clipped bandoliers)