I need close range defensive handgun. The way I see it the R9 has disadvantages of recoil spring replacement every 250 rounds and may not be totally reliable with all types of JHP bullets. The recoil spring is inexpensive, but now that Rohrbaugh is Remington I may not be able to get spare parts in the future. Not that weapon of this type will be shot a lot, but still availability of spare parts being there is reassuring. The revolver is heaver and thicker, but will likely be more reliable and it being 640 with 9x19 chambers parts will always be available as long as S&W will be in business.