Been there three or four times, each for a bout a week. Yes, the LDS Temple is a must-see, especially if you get to see the Mormon Tab Choir. And it's the wrong time of year, but the skiing (quantity, quality, and access distance) can't be beat.
But I must say, as someone who was once in your situation (considering moving there), based on my experiences there, unless you're LDS and consider that location a home base already, be ready to feel like an outcast if you move there. The proselytizing is practically non-stop, and many will treat you as a pariah if you are reluctant to give in to the proselytizing. And even when the proselytizing isn't direct, you'll still have to live under rules that are clearly direct extensions of the LDS influence. Be it strange business hours, alcohol purchase/consumption laws, or many others, the LDS influence is everywhere.
A couple of the more extreme examples from my brief visits--
--On one trip, I was needing to meet with a group of three or four people outside of work hours sometime during my visit. While trying to set it up, I happened to mention that Monday night worked well in my schedule, and asked if that could work for the others. Not only did they refuse, but for even suggesting it, they refused to meet with me at any time during the trip. I later learned that apparently Mondays are the night that all LDSers spend the evening at home with their families teaching religious lessons, and for even opening the possibility that they miss that (even though I had no knowledge of it), I was being shunned.
--During the one trip, there was a news report on TV about a local public high school which has a Russian language and culture class. There was soon going to be a large collection of Russian art touring the States, including a stop in Las Vegas, and the kids had been raising money much of the school year for a trip to see this exhibit. However, shortly before the trip was to occur, the school board vetoed it, saying that the ratio of students-per-chaperon was too high. So the trip organizers got several more parents and other adults to agree to travel with the class. Then the board vetoed it again, because the group was scheduled to travel back on a Sunday, and that would mean the driver and chaperons would be working on Sunday. So they adjusted the trip to a different week, when school was already out on Friday for other reasons, so they could start and end the trip a weekday earlier and thus avoid Sunday without affecting the amount of school being missed, even though the cost of the trip went up as a result. Then the board vetoed it again, because the exhibit was going to be hosted by a casino which required guests to pass through the casino to reach the exhibit hall. So they contacted the casino, and worked out special arrangements for the class to be brought in through a back entrance to completely avoid any direct casino exposure. But then the board vetoed the trip one last final time, in a way which killed the trip from happening--the reason given for the last veto was that "Las Vegas is a sinful, evil place".
That, on its own, I did find concerning when I first heard the report--but, I thought, at least this ridiculous decision was seen as unusual enough to make the TV news on multiple stations. However, it raised far more alarms for me the next day, when everyone in the area was talking about it, and nearly everyone was agreeing with the school board! Come on--it's fine to say that you don't care for Vegas. It's not for everyone. But to declare the entire city to be "evil" and to deny a cultural learning opportunity like this that the class had worked all year to achieve, solely for that reason, and to have the general population be in agreement??
It was the last nail completing my decision to not accept the job offer I had available there.
Anyway, if that sounds like it'll fit into your style, or if you can at least tolerate it, great--more power to you. But if you have even slightly differing beliefs, make sure you go into any decision to move there with both eyes open...
