Re-reading what I wrote, I see that I neglected to mention the other salient aspect- I don't find it difficult to find niche interests nowaday at all. Thanks to the internet, finding like-minded individuals for just about anything has never been easier.

But it's a different feeling than it was before, because of how things work. And some of that works against the process of forming smaller, tight-knit communities than how it used to be. And it's ok to lament loss.

Does that make more sense?