Not sure what the S&W 23 round mags cost, but I can and have bought 17 rounders for $22-26 bucks. A 33 OEM mag would be nice, but don’t see Smith having one.
All that said, the KelTec Sub 2000, Gen 3, just hit the market and IMHO is a game changer. With the rotating bbl, you no longer require an off-set to install a scope, light or other Optic and get full fold ability, like the S&W.
I will wait to,see the reviews, as I never liked the recoil impulse of the Sub2000’s, as compared to the FPC. Even though both are blowback design the FPC shoots softer. They say the Gen3 KelTec’s recoil is improved. We shall see.