I took the wife to the Columbus show about 4 years ago and she said she enjoyed it well enough. We were in and out of the show within an hour or so, and imagine that helped her enjoy it more. I know how I am with going places she wants to go that I don't really want to; I'm good to go if it's in and out within reason. I asked her if she wanted to go to the Chicago show this year and she declined, which means I'll be taking my cigarette smoking best friend instead. That is unless he bails on me. I'll be going alone if that happens, which I'm good with too.
So yes, of course, take your wife to the show if she wants to go. It is not a party foul, but be thoughtful; you may end up spending half a day in a shoe store somewhere on the way back home.