I get the impression that it's the anesthesia guys who generally have no issues with IV sedation for blocks, and the PMR guys that do.
I've had a spinal and an epidural placed for surgery, both done without sedation. They sucked. I've had local infiltration for removal of a rather large skin lesion. It sucked. I had a metacarpal block when I attempted to slice off my finger with a table saw. That REALLY sucked.
You want yours done without sedation - fine. Maybe you're just manly men and can "take it". But having been on the patient side of various blocks on more than one occasion, I'm glad I have the choice, and it's a real easy one because I work with great anesthesia-trained pain docs who aren't afraid to offer IV conscious sedation to their patients (including me) that would clearly benefit from it. With the exception of OB patients, we sedate virtually all of our patients having blocks placed for surgery and post op pain, so I just don't get what the big deal is. I had no idea that there was such a difference in philosophy. Maybe we should market that aspect of our practice.