When I was considering an M8 I went to two small shops. One out in Amytiville Long Island, and another Just South of Milwaukee, WI. Both were selling the M8's that they had in the display cases. That people would come in and fondle.
I ended up getting mine from Adorama because I knew it would be a sealed box.
I'm very particular about that sort of thing. New is new. Something that people came in and handled and shot 4-5 frames with is a demo. And I'm not going to pay full price for it. Have you ever seen people handle display models? They have no regard, and if they were to buy one they'd want it in a sealed box as well.
I remember once seeing a floor model at best buy with fingerprints on the sensor. Gross.