I am sorry guys but the cheap stuff that has been mentioned hamilton beach, krup, cusineart, the lawnmower type blades are bottom barrel, below cheap. You may think they are fine for your needs but that is because you have not experienced great tasting coffee made using a quality grinder.
As I said before you can make great coffee even fabulous coffee using the most crude brewing methods if done right. Unfortunately a quality grinder is a must and although I wish they were less costly they are not. Quality sharp steel burrs that are precisely mounted over a motor cost money to manufacture.
The quality of the grind makes a huge difference in cup flavor.