I have been using the Lee Case Trimmer chucked into a cordless drill. Pop in a case, trim, chamfer, debur and done. Very quick. I usually do a large lot at each step at one time / night. Lately I have been doing batches of 50 and loading them too. I can get 100 / night with a single stage press in a couple hours.
To me, the Lee is the cheapest quickest way when chucked into a cordless drill. It stands up on the bench and is easy to use. Get the Ball Cutter makes it easier on your hand. It wont be such a chore anymore.