At previous NSXPOs, approximately 50-60 percent of members attended alone, and 40-50 percent of members brought a spouse/SO/guest. For obvious reasons, it's impossible to estimate how many of the latter group consisted of a spouse/significant other vs a "buddy". (FWIW, I would guess that perhaps 80-90 percent of the spouses/SOs/guests were someone of the opposite sex and similar in age.)
All are welcome.
Those who enjoy car events will enjoy this one. In the past, many guests who expected NOT to enjoy NSXPO, turned out to have a great time (often by making friends with other spouses/SOs/guests who also did not expect to enjoy the event!).