If you're at all familiar with the various electrical failure modes of these things, you'll know they have nothing to do with Lucas, yet they exist. I was bit by several and I see bargain bin LR3/4s all the time on craigslist where the owner has given up. Going by the latest reliability studies, there's every reason to suspect the latest models will age similarly.
Can't agree with you more but I've also helped some great friends pick up really nice LR3/4 from those "beta families" who can't fix their own vehicles. Helped my buddy buy an 08 LR3 with suspension fault and we fixed it with a new set of LED bulbs for less than $40; still loving it today as he cruises around Hawaii.
Point is, they can be as well as any other vehicle be a maintenance burden but the vast majority of items they have issues with are simple and not major repair items; they get the "trip to the dealer" reliability hit on the major polls because most people driving them can't even change their own flats. This leads to me to also agree with your thought process on the demographics of most LR folks but I'll take that as an advantage to us on the resale market getting cheap vehicles with no real problems and easily fixed.
I have 265/70/17 E-Rated (31.7" by definition at 32" tire) and no rub, no bump, no negative aspects at all. Spare fits if I want it in the factory spot but again, it hangs on the back for preference because I'm also putting an aux fuel tank in the spare well. I do not run chains but probably should get a set for heading north. The biggest clearance issue from my recollection is at max travel for the upper LCA and from my measurements; I do not see chains being an issue. Please someone with experience tell me the best chains cuz I only want to buy them once....lol
Again, modifications are relative to the owner! My bone stock LR3 with 18" wheels was far more capable on street tires than any other vehicle (most slightly modified) on the trails. I pulled a Jeep, Taco, and 4Runner out on the same day in Ka'ena Point, Oahu. We used my fat LR3 as an anchor to winch out the Taco and then I snatch roped out the other two; I drove right around all of them, turned around and then hooked them up in the same terrain they were stuck in.
These are not all
@EricTyrrell but more for the general public.