http://smith-wessonforum.com/smith-...29994-cs45-cs9-owners-please-step-inside.html
http://smith-wessonforum.com/smith-wesson-semi-auto-pistols/333270-s-w-cs9.html
http://smith-wessonforum.com/smith-.../189548-your-thoughts-cs9-chiefs-special.html
The price will probably be whatever the owner is willing to accept, combined with whatever the market in that area will support.
They're only going to make them if any existing LE agency customers demand a production run (meaning they can't be talked out of buying M&P/Shield models), so it's not like you're going to find a glut of them on the market.
I tend to find the CS9 to be handier, lighter and shorter enough to be attractive for
my needs. Being the owner of a late production 3913, I held off on ordering my CS9 until they'd been in production for a while. Mine has the steel Novak low-mount sights and ambi safety/decocker.
I find my CS9 to be every bit as accurate as my 3913, with the range of issued ammo I've used (standard pressure, +P & +P+ loads), and it's not a gun I plan to trade off. I usually don't have much trouble making called hits on small wooden clothespins sticking off cardboard target back boards at 5-7+ yards, and have been able to use the CS9 for more hits than misses on the clothespins out at 10 yards. It does get interesting and challenging to hit a specific part/end of the clothespin at the longer distances, being more limited by
my ability than the gun's inherent potential accuracy (I'm not a bulls-eye/target competitive sort of shooter).
I actually like my CS9 better than my older and much more well-used CS45.
Folks who have really large hands usually find the CS guns to be too small for comfortable handling & manipulation ... and for them the 3913/908/4513TSW/457's are probably better choices.
The CS40 was never a great seller for the company, and it was dropped from production several years ago. I was told that it sold less than 100 units in factory sales/orders in what became the last year of its production.
The CS9 & CS45 sold well enough that the company never really had to do much advertising, and they sold quite well to LE for off-duty weapons, simply by word-of-mouth. The CS45 was often described as being more popular for off-duty choice in agencies where .45's were used for duty, as it was a really diminutive .45 that offered the typical 3rd gen reliability and ammunition tolerance.
Great guns in the 3rd gen line up, but probably not for everybody.