Sphinx is a very well made weapon. I have always wanted one of those Swiss pistols for pistol gaming. I always wanted a 9mm but settled on a Witness because of availablity and just plain easy to get. Price may have been an issue but I could not find any locally to even look at. I have read about them and a friend from tennessee as one I shot.
I did a quick search to determine the value of a NIB .380
I found this
looks about right good luck. If you get it post a pic and a review please.