the sig costs more, but not by much. also be warned, Sig grips are notoriously big. if you've not shot one before I highly doing doing so before purchase doing. you should also keep on mind anyone else who Kay be shooting your gun. my wife has fairly large hands (for a woman) and is a good shot but can't controll my sig because only the tip of her finger will reach the trigger (or she has to hold it at an angle.)
Sig Sauer costs more, for sure, without even needing to look it up... Big name in guns! But hey, if I had the money in my pocket, and my favorite gun shop had one, I'd buy a Sig P239 in .357 Sig, toNIGHT!