I don't feel like my chest gets thoroughly worked unless I do flat barbell work. I feel that it hits my entire chest thoroughly. I was one of those that got caught up in the weights rather than the true feel of my muscle fibers in my chest contracting in the movement. Just two weeks ago I changed my rest periods down to 60-90 seconds and really started focusing on the feel. Although the weights are down a little from this, the workouts are a lot better. But, yeah, no idea why a lot of bodybuilders these days shy away from it. A lot of my lifting friends do it just for that reason though (well..if so and so doesn't do flat bench, I don't need to either) and usually do barbell incline, flat db, incline db,etc. I still do these movements too, but I've honestly tried this (taking out the flat bench) and notice my chest losing thickness/full look over that time.