The Wrangler sells like crazy, yes, but if the whole lineup was solid axle wheelers, it wouldn't hold up. That's just the way it goes. Most people aren't looking to spend 20-40k on a new SUV just to go beat it up off-road. The few who do buy JKs or if they want to spend a little extra cash on making it wheelable, an FJ Cruiser or XTerra. The Cherokee became the Liberty for a reason.