What is a 2011 and why would I want to run one? Another serious question.
Strictly speaking a 2011 is a trademarked name for a series of guns that were made by STI, and then Stacatto. The OG 2011's had a modular metal frame, polymer grip, and run mostly 1911 fire controls and top ends. They also run doublestack mags.
Like "Walkman" the term "2011" is kinda shorthand for a doublestack 1911, which are pretty popular with gun-gamers, and run and gunners because they tend to shoot very accurately, quickly. The "Entry Level" type is something like Springfield's DS Prodigy at ~$1500ish, while Stacatto's go from $2k-$4k, and the really nice ones like Atlas Gunworks or TTi Sand Vipers get to the $6k-$7k.