Thanks all. I walked into my LGS today, armed with the $320 price from grabagun. The online price would have been $320, + $6 shipping, + $25 FFL transfer = $351.
He had one in stock with a price tag of $399 and offered it for $359. For $8, I'll support my local guy and avoid any potential issues with an internet deal.
I tip my hat to all you who got one around $300--that $200 for the gun and $100 for the magazine.