To a large extent, Hammer, I agree with you. If I had to choose a certain type of lifting to make up the majority of the routines I would use over time, the type of lifting you advocate would most likely be it.
However, I would still periodically sub in several weeks of volume training to shock the muscles with something they're not used to.
For example... this week I started back on GVT after 2-3 months of dynamic effort/max effort training (each muscle group twice a week). My endurance levels were absolutely shot to hell... I didn't make it past 6 sets of 10 on any of the exercises I've used so far this week. I'm sore as hell, and can see a noticeable size difference in the muscles I've worked this week. I haven't been this sore since the first week I worked each muscle group twice in a week, several months ago.
I'm planning on sticking with this for two more weeks, and then going back to DE/ME training. My goal is to give my achy joints some time to rest up with lighter weights (they were hurting after all the max effort work), build my endurance levels back up somewhat, and hopefully gain some hypertrophy from shocking the muscles suddenly with high volume.

You mentioned 3 times a week in your post? Does that work for you? How do you structure the workouts? DE/ME/DE? Are you able to do that for all muscle groups? I've never gone above 2 times a week for a muscle group. Maybe I'll try that at the end this volume cycle.

-D
"Everything is determined by your infantile sexual compulsions. You are doomed to a life of meaningless misery, and the most you can hope for is to convert
debilitating neurosis into ordinary unhappiness." --Sigmund Freud