Tell your wife that wives coming along is a big plus and we encourage them to come along. She has a personal invitation to the meet from the President! (How can she refuse that!?!)
Seriously, most spouses, S.O.'s and even kids that come along really enjoy themselves. We all come for the people more than the cars. Lots of wives have become good friends among themselves, and fit right in to our activities. It really makes for a better time, IMO. It's not all car stuff - for instance last year in NC we went to Biltmore and toured it, had a couple of nice dinners, had a cookout, and went to a casino, all family friendly activities (well, the casino wasn't for kids, but the wives managed to lose plenty of money...

). Car stuff was some good rides, and show-n-shine, which is a good socializing time.
Not to mention that we have female members of the Club who attend meets. I know how I'd feel if I was the only guy at a Club meet with all women (lucky as hell...

) Sorry Cherie, what I actually meant was it'd be cooler if other guys were there too.
Even Carlisle, a veritable sea of cars, is better with the better halfs. Lots of social time, plenty to do in the area (e.g. Lancaster) and the staggering amount and variety of cars makes everybody smile. Some even enjoyed the drag racing!
Ocean City too - shopping, mini-golf, the Boardwalk and a craft show were some non-car activities available.
This meet, if we can successfully pull it off, will need multiple activities to attract lots of people and their families, and we strongly encourage them all to come and enjoy.