A few comments that hopefully won’t offend anyone. The GGG started somewhere around 2008. It was a bunch of backpackers, most of whom were on BPL, who lived in the NoCal/Bay Area of California. So it really wasn’t a BPL function, but a NoCal/Bay Area get together.
I have been to four NoCal GGGs and three SoCal GGGs. These were separate events. When the SoCal events were held, there was also a NoCal event held the same year. No coordination between the two events. To my knowledge the ownership of BPL has never participated or sanctioned or even attended any of these events — I could be wrong.
The NoCal/Bay Area GGGs have a different “vibe.” They tend to be larger and more diverse in regard to gender, ethnicity, age, experience/knowledge, education levels, etc. For me they are just more fun. I have built many friendships with several of the NoCal/Bay Area attendees — done several backpacking trips not related to GGG and have stayed at the homes of some of these fine folks, and several have spent time at our house here in Palm Springs. Never got that sense of community at the SoCal events — although the SoCal events were a lot of fun too.
It also seems to be easier to find a NoCal location for the GGG that is easily accessible for those who live in the area, versus the high density population in the south.
One thing to keep in mind is these GGGs need planning. They need someone to organize it and deal with all the little things most of us don’t think about. It takes considerable time to put one together.
If there is a GGG in NoCal this year, I will probably attend. I would attend a second one in SoCal if someone is willing to put it together. I live less than 30 minutes from the proposed Whitewater Preserve, and less than an hour from all the entrances to Joshua Tree National Park. Logistically (planning) they may not be the best choices.
Oh, and thanks to Katt and Peter V for input on this thread. They’re two of my favorite hiking partners that always make the GGCs fun, not to mention the numerous other backpacking trips we have done.