This is it.
Marketing, hype, keeping up with the rest of the guys. Very few people want to start from ground one. Hence there are very few Nissans out there and those which are out there are driven by guys who don't just want to build their overlander on line. The Toyota and Jeep after market are huge. Bolt on parts are abundant and online support/forums everywhere. Even Subarus have a pretty decent online presence.
The domestics tend to trend to specific uses. Dodge 40 years later is still regarded by those driving them as the towing king thanks to the legendary Cummins..... altho it has lost some of that reputation thanks to current emissions regulations and the competition has closed the gap. Chevy has the rep for a luxury ride but that hurts the rep a bulletproof driveline. And Ford has the F Series rep as the biggest selling domestic truck ever. Today all 3 of those reps overlap but what hurts the GM in the off roading community is the rep for choosing luxury ride over bulletproof driveline and suspension. And "upgrading" the GM driveline since it has so many more bits and pieces is more expensive than upgrading a solid axle suspension in a Ford or Dodge.
And yes, those buying are often wanting to fit in with the group. emotional ego, group justification, peer pressure, The bigger the group the easier it is to fit in and be welcome. I love this, the VW clan circling the wagons to concentrate the peer pressure and avoid outsider influences...
View attachment 572152
I wish I had a picture of the eclectic group of guys who camped on the outside row, all facing the ring road and welcoming in anyone wanting to talk about what they brought to the show. Guys with K5 Blazers and Ford Country Squire Wagons and Cab Forward Dodge vans. The common bond was not what they drive, the common bond was what they did not drive..... and beer.