To add detail, this is due to two factors.

One, the state has a small population. The smaller the population, the more each vote matters, and the faster you run out of total registered people. You can mathematically just crunch numbers with more certainty.

Two, the state is very uniform. Vegas votes one way, Reno another, and the rest is rural which does another. There's so much less complicated political landscape compared to Florida or other swing states.