One of the great things about bicycling is the community that you can become a part of if you choose. The good stuff that two wheels and a bike bring to your lives they are also bringing to the lives of those around you that are bicycling too. The feeling it brings eventually can lead to passion for bikes, and that passion winds up being celebrated by a community of cyclists.
It has been that way wherever I've lived. A certain group of riders is so passionate about bikes that they develop a community based on that passion.
The binding force isn't the bikes or the bike shop. The binding force is the passion for bikes and bicycling.
We should all relish the fact that our sport allows and encourages such passion. We have common ground, whether our wheels are 20" or 700c, and that common ground makes us part of a fine community.