Speaking as a spouse who isn't as "into" the skeptical movement as my husband is, I think there's plenty to do in Vegas regardless of where your interests lie. My first TAM was when Robert was to deliver his paper on Kaz. I visited family, played the slots, did some shopping, and even watched an in-room movie I'd been wanting to see and knew Robert didn't, while Robert was in the convention all day. At night, I really enjoyed the dinners and parties that are very much a part of TAM. JREFers are such a great bunch of people and we genuinely enjoy each other's company. At TAM 5.5, I was able to see a bit more of the convention itself, which was OK, but not as interesting for me as taking off on a joy ride with Kitty and Elaine was when they played hooky from the convention for a day.
The place we will be staying is filled with things to do, as well. A movie theater, a bowling alley for Pete's sake! Shopping and gambling desires can also be fulfilled there. And if sightseeing is more to Mrs. Maximus' taste, there is a Grayline Tours company that has some fantastic day tours. She should check online to see if there's something in particular she'd like to do. If she'd feel better with company, run her plans by me and maybe we can do something together. I will be with Robert when he makes his grand entrance, but I know if I choose to leave him at the convention there will plenty of folks who will be there to help him along. I will want to be there for the social activities of the convention, but will likely have plenty of free time.