I was just in Vegas for some trade shows. The Raiders stadium was about a mile away outside my hotel window. Not a fan of the exterior but it's fitting for the Raiders I suppose.
Arrowhead is a great stadium, but in 8 years it will be 60 years old. There's not a lot more you can do with that building, and larger events like SB, FF, potential CFPO games will keep passing KC by without a new stadium.