I have a SigPro SP2340 in .357 SIG that I bought when I first heard about them in 2000. I absolutely love that round, it is also the most accurate handgun I own, and, yes, it is much, much more than a souped up 9mm Para. I guess you could also say that a .357 Mag is also just a souped up 9mm, or a .30-378 Weatherby is just a souped up '06. Yeah, I guess you COULD say that.
SAWgunner