The fleshlight is, to put it bluntly, a device for assisting in the act of male masturbation. It's also, shockingly, quite the hit with lonely video gamers.
At least, it is according to this Amazon page. And since Amazon's "customers who bought" pages are generated mechanically, there's no room for prejudice, comedy or torment. Just facts.
Once you get past the, ahem, essential accessories to accompany the device, you'll see a demographic appear right before your very eyes, with World of Warcraft, Fallout 3, Saints Row 2, Command & Conquer, God of War and Grand Theft Auto all featuring.