Not sure how far west you are in PA. but we have Gamber Container (a division of Dutch Gold Honey) here in Lancaster County (Eastern PA). I bought a case, 321 count, !# plastic with lids for $.42 each, picked up at their location. The saving on 100 probably would not pay your gas. Not sure what they charge for shipping? They have a web site you could check there.
I will have to check what would fit in one of those "if it fits, it ships" boxes.