Ladies....thanks for your replies.
The first difference I have noticed is the inside pocket. (I don't care for exterior pockets) When I place my cell in it and my sunglasses, it sags outward into the interior of the bag. All my other Dooneys have much more structured pockets and I've never had this problem before.
Perhaps, it is just me. But, there is a difference and I think the answer is to stop purchasing for now. I have enough anyway...........too many, actually. 
Thanks again.......................................