@melt_the_tek9 said:

"As a musician, it takes a certain "something" to trigger taking a chance that you will like."

Well said and a subtle point indeed. I'm a musician, too and what you are saying here is not easily discerned. We'll never know about the group dynamics at play between the boys both on stage but especially off-stage, on the tour bus, etc.

Also, from a slightly different angle, I know from personal experience that there are sweet moments with music when your simply "hear" a certain piece of music or a song in a certain way and you are able to interpret it with freshness and vitality. Then, you try to pick up that same piece of music a year or two later or even six months later, and try as you might, you just can't recapture the same vibe or feel that you achieved previously. The song has changed for you and you must move on and adopt some other piece of music as a vehicle to express what inside you.

Music is organic and I believe this is part of what's going on and why some things get left on the shelf when we perhaps feel they should be getting more exploratory treatment.

For instance, there seems to be a group consensus about the languishing state of AC/DC Bag. Maybe the boys just aren't feeling it? Maybe they aren't comfortable going there?