Oh Las Vegas McCarran International, how I love and hate you!
Gates A, B, C are in an older wing of the airport and badly need upgrading to meet today's modern traveller need. My two top complaints about the older terminals aside from the boring old carpet and strange color scheme is 1. It takes forever to get around this older terminal, there aren't enough people movers (Moving Walk Ways) 2. Where are the power outlets! They seriously need to get that electrician into the waiting areas to bring in more power! Charging ports are at a premium. Maybe partner with advertiser's like all things Vegas? Get someone to pay for it :-)
Now the terminal that Delta, and the legacy carrier's are in... That's a beauty, with new modern design, shops, restaurants, and easy to move around. The wide huge open ceilings are a major plus. Still power outlets seem to be scarce.
All in all Vegas ain't bad. Will anyone care really about the airport? Probably not. After all this is the city of lost wages, and McCarran is simply shuttling people to all the wonders that reside in this strange sin city.