I loose count
Where I use to see only 1 or two every week, I'm seeing over two a day. Count myself as one of the visionaries who picked one of the first to come off the boat in 2005.
Really though how can anyone not buy one given how practical they are? Of course there are those who complain about the high performance tires and taunt suspension. One colleague at work purchased one a couple of years ago and commented that a family car shouldn't have such low profile tires. I told him that he really didn't get the 5 if he didn't understand the point of it's tires.
I've actually been trying to get my wife to buy a CX-9, but she really doesn't see the point. WIth the exception of all wheel drive and extra goodies, she thinks the 5 suits our needs perfectly.