DNS couldn't agree more! But one last little thing...
I worked Hedland Tower when there was traffic there, 3-4000 a month. We had CTR/CTA in the old wedding cake design up to FL250 and around 120 miles, our CTR was 30nm and we had the pilot station choppers and VFR training and the Doc and the sundry others who wanted to fly. I cannot remember anyone being delayed more than a few minutes due ATC procedures/separation except in IMC.
Why go cheap? Casue it is politically correct. A controller costs $X to man the tower whether controlling A, B, C, D, E or G. So why do we insist on tying their hands by giving them half baked airspace and procedures?