Well, it's obvious you're not going to get people to say "Oh yeah, I bought my 4WD cause it looks so bad". It's like people admitting they ride Harley's because of the image that they want to portray.
And actually, most people on this forum will probably use 4WD occasionally. Considering how many 4WD trucks and SUV's are bought by people who live in town and have rarely seen a muddy road, it could be a wash overall.
But why else would people who live on completely paved streets pay more money to buy something they'll never use? Either they've been totally conned by the salesman, very possible, or they are trying to look like something, not sure what.