Boy, when you got 96 Mackerels to spend on a USED stamp, you must be having a pretty decent life.The bidding started at 3.75 and escalated up the ladder pretty quickly. That amount of money would keep my kitties in canned yummo's for many many weeks. I wonder if the bidder gets carried away or if it makes no difference as long as he/she wins? I will leave the craziness for others. There is a good chance I can find lot of other kitty stamps and fill up a flat rate box much cheaper.