Outside of "possible" treadlife being lower, what solid evidence do you have that they are "middle of the row" compared to Duratrac, or any other brand for that matter? I'm just curious because, in my opinion, anyone who says that simply has not tried them. If you're referring to the categories showcased by the tire manufacturers, those are really hard to use seeing as most of them just refer to the manufacturers in general, not specific tires. The ones that do have that info leave much to be desired as not many real AT tires actually get tested, there are many left out.
I encourage everyone to post their individual thoughts about the tires they personally own, but DON'T automatically assume that because you like them, they are the standard at which other tires are measured. I can only comment on my own experience in this regard, having previously had 3 vehicles with the BFG's, and also Yoko Geolanders.
There is nothing (in our snowy, icy, and generally wet pacific coast weather we get there) that the BFG's or Geolanders have done that my current tires weren't at least 50% better in; outside of possible treadwear for the BFG's, and quietness for the Yokos.
Seriously, just ask anyone who's ever owned them.
If anyone makes comments on certain tires that they haven't had personal experience with, why listen to them. They could be misleading.
Anyway, the BFG's are hands down a better tire than the Yoko's I replaced too; just not as good as what I ended up with.
My bro has a 2000 LX with new BFG KO's, and I intend on shooting some video once we get some snow to showcase the difference in these two tires. I can't wait!
That being said, If you don't get a lot of wet weather, or snow driving, and do a lot of highway miles, they may not be the best tire for you.