Most people in the U.S. do not ever actually USE their SUVs as they were intended. Instead, they're mainly driven by affluent soccer moms who don't work (their husbands do), used for kid shuttle service and grocery runs (OK, a bit of soap box preaching there, but you get the idea - and not that there's anything wrong with what moms do, but most of them drive these beasts around like they don't care about anyone else on the road, yapping on their cell phones and quieting the kids by playing movies on the in-vehicle DVD player...).
SUVs are status symbols here, not working vehicles. In this market, Toyota decided sometime in the late 1980s to only bring the highest spec Cruiser possible to the States, probably for two reasons:
1.) The higher profit margins to be realized from the higher spec vehicles, and...
2.) The value of having such an iconic vehicle in its lineup (sort of like an Acura/Honda NSX, Mercedes SL, Porsche 911, etc.).
PS: My wife drives our 100 Series daily for... kid shuttle duty...