My experience and perspective is similar to R3's. When I was a young man I lived in gay neighborhoods, knew my way around gay bars, gay restaurants, gay breakfast diners, gay vacations, gay sex clubs, gay gyms, hired gay plumbers and contractors and handymen, saw gay doctors and dentists. I read gay novels, attended gay film festivals, worked to elect gay politicians, volunteered with gay organizations. Etc. For all the gays I fucked, you might think I would have had lots of gay friends. Not really, not until middle age did I have more than one or two gay and lesbian friends (and I'll note that I've always enjoyed good and faithful relations and friendships with lesbians.)
I'm very glad for that experience and much improved by it, but it's not important to me now, nor even gay spaces.
I live in a country where gays enjoy equal rights but, more importantly, they can enjoy the support of friends and family who are not gay and lesbian. In any circle of friends or family there's someone who is gay and someone else with a gay kid or a gay brother or a gay uncle or a gay best friend. Being gay is not earth shattering news, not a great divide among people in any age group. It's not perfect equality, if course, nor perfect nonchalance, but it's remarkably good considering history and other parts of the world.
Now my friends are roughly evenly split between gay and straight, but the gatherings of those same people are not, they are always always mixed groups. Only quite rarely do I find myself in a gay space these days and that seems natural to me now just as being surrounded by gays all the time seemed natural when I was younger in the age of gay ghettos and gay lifestyle magazines and gays living apart and circulating apart from straights.
There was a sense if community (even if, pre-AIDS, that rarely landed me many gay friends), an easy way to approach the world one city to another as uf the member of a gentleman's club with reciprocal membership the world over. The need and pleasure if that is much diminished, in society and in my life, so no, while I'm happy they exist still for the benefit of others who may Kean in them, I don't miss Gay Spaces and the culture that went with it.