MPLS
When large companies send data long distances at high speeds, they tend to use Multi-Protocol Label Switching (MPLS) networks to do it. These networks can be of almost any speed, but they will all send data from one router to another based on the shortest, fastest hop available for each packet. And when it comes to moving money and information about money around the globe, casinos want as much speed, reliability, and control as possible.
As it turns out, Las Vegas is one of the best places in North America if you want high-speed wide-area networking. For a variety of reasons, some historical and some geographical, backbone cables from just about every top-tier networking company go through Las Vegas, so MPLS connections are not just available, they're available quickly and on a competitive basis. Since the big casino operators are now global corporations, that's a very big deal for a very critical technology.
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