Hornady XTP American Gunner 9mm +P Luger 124-Grain Handgun Ammunition 25 rounds - $14.99 Features and Benefits9mm +P Luger caliber124 grains25-round boxPropellants are matched to each load for optimal pressure, velocity, volume and consistencyHigh-quality primers and cases for consistent shooting in
I saw one of their 300 AAC pistol kits for $299.99 yesterday. At that rate, I'll be building one soon. I would guess ammo price will only go down as popularity increases. I do generally prefer the heavier grain ammo, especially for personal defense, although I find it unlikely that I would be using an AR Pistol for that purpose. For me it would essentially be a range weapon only, or perhaps home defense if there's a safe way to do that with this caliber.
a $35 rebate is available until December 31, 2018 (edit: thanks for updating the title)
It looks like Taurus learned about the problem with Ruger LCP takedown pin and modified their design. This is similarly how I fixed my LCP, by filing a deeper groove in the pin so it must be rotated.
If this Taurus comes with 2 mags, then $199.99 (before rebate) comes pretty close to what I paid for my LCP after I bought a 7-round mag and a recoil calibration pack. The Ruger did come with a pocket holster which is handy.