Wheel bearing replacement... How often?

[Smokestone10]

My 2010 AWD has, overall, been the most reliable vehicle I have ever owned. But, after the most recent trip to the shop to replace a bad front wheel bearing, I was told that the rear wheel bearings were getting sketchy as well.

 

I have owned this car for five years and almost 100k. In that time, I have replaced every wheel bearing at least once. Now, the most recent failure I am suspecting was caused by the broken strut I never noticed but the tech saw right away. ? The only indication to me was a very slight clunk when turning the wheel at low speeds, pulling into a tight parking space. With the strut in it's present condition and possibly causing an uneven load on the hub that bearing's failure makes sense. But the rear wheel bearings have been replaced already and are about to need replacing again. Lincoln dealership did two, and the used car lots I bought the car from did the other two. Despite the shot strut on the front the mechanic said there's nothing amiss with the rear suspension.

 

Just wondering if these cars eat wheel bearings, or if my car is just an unfortunate example. It's not like it's stanced or anything. ? Stock tires and wheels. I understand I've put a lot of miles on it but I've had a few vehicles with as many miles and never had to replace one wheel bearing, much less all four and counting.