Insert Coin(s) is a cross between a video game arcade and a good-sized bar.
Here's an excerpt from a LV Sun article:
"Inside, the bar is uniquely un-Vegas, perhaps a key source of its appeal. Graffiti art plasters the walls, for that hipster touch, but stands meekly in comparison to the high-definition TVs that adorn them. About ten private gaming booths line one wall and more than 40 classic, coin-operated arcade games crowd the otherónot a slot machine in sight. The empty space in the back is, naturally, a dance floor and DJ booth, and a full-service bar sits right in the middle. Where video poker machines are typically installed in bar tops downtown, color-changing LED lights are in place at Insert Coin(s), rounding out the too-cool-for-school mood."