Thank you, this is a very good comment.
"I know what mine are - but it's subjective."
Well, see... That's the thing... I spoke vaguely because the benefits themselves are ambiguous, subjective. They are hard to quantify because their intrinsic value varies based on who you ask.
However, just because they are not easily quantifiable does not mean that they have no value. You are right. It is easy for me to sit over here and criticize them for not discussing something that was probably outside the scope of their article.
With that said though, it may be possible - one day - for someone to figure out some way of approximating these things (no landlords, lower fixed monthly costs, more control over your own property) and giving them some type of monetary value.
One thing that could be done is to look at the difference between rent and ownership prices and build an econometric model in an attempt to tease some numbers out of it. Maybe someone has already tried it, but I am not certain. There would be some selection bias though - the kind of people that own homes are probably not exactly the same as those that rent apartments. I'm not sure how to deal with that...
Just something to think about, I have taken some classes in Urban economics and all of these professors talk about how incredibly stupid it is to own a house. Then, over the course of the semester, I would realize that they owned houses myself. When I ask them why, none of them has a decent answer.
Maybe the answer is something really sort-of fuzzy. It seems to me that people tend to buy a house when they want to lay down "roots" in a place, but then that wouldn't explain why so many people just rent for a long time despite not needing the mobility.
There are probably hundreds of factors that creep into the decision to own vs to rent. I guess being aware of this is why I feel repulsed at articles claiming to compare the two but not even trying to factor in the preference-related factors and how they cloud this type of analysis.
Disclaimer: I am an economist-in-training at this point in time. My thesis involves an application of a hedonic pricing model. Too much work with hedonics and you may become delirious - believing that everything can be quantified if you just tinker with the model long enough...