In my neck of the woods, 12ga Diana target loads run about $54 a case.  20ga goes for about the same, which doesn't make much sense.  The 100 round value-packs of Remingtons and Federal's you find at Wal-Mart are about $21.  They're slightly cheaper, but I think the Diana's are a little better load.  Lawrence Brand magnum shot was $27/bag last week.  Down from $46/bag last summer.  If shot prices are down some 40% already, I would think that loaded shell prices ought to be coming down as well.  It amazes me to think that I was buying dove/quail loads for the 2007 season at less than 4.50 a box, and just a year later it's well over $6 a box.  Things are finally starting to come down a bit, but I think it's still ridiculous.