The last bag of 5000 wheat cents I picked up at a local coin shop (now closed) had 770+ steel cents in XF+ to AU+ condition--no rust/corrosion. Turns out the shop owner was hurrying to fill the bag just as I arrived to get it. He was breaking down several old Whitman folders of steel cents to get the count to 5000. I saw the torn up folders and a few loose steelies on his counter as he was tying the bag. He always had a decent mix of dates and mints so I was confident of the bag's overall quality--all for $250. Also found in the bag were a couple dozen nice '32s and '33s, two '26 Ss, and another two 24 Ds.
His shop had a basement, but no shed.