I just bought the 1/4" and 3/8" for around $11 each with a 20% off coupon. Make sure you play with all of them in the store and buy the ones that feel the best. The ratcheting mechanism sounds/feels different between all of them. Most even sound different depending on whether it's ratcheting right or left.
When you get them home, take them apart and clean the internals. You will see that it is almost completely dry inside. It's scary to think that some people probably use them like this. Inspect the gear and remove any burrs you see. I ran a razor blade through suspect grooves to feel for them. Finally, lube every moving part sparingly with something. I noticed a huge difference in sound when using a moderate amount of lube vs a small amount of lube. I used Super Lube. If you use too much, the ratchet gets an imprecise sound and feels "mushy". I like positive clicks. Positive clicks probably means that the pawls are making good contact with the gear. Finally, use Loctite on the screws and adjust the tension on the selector. I also put a little lube under the head of the selector screw since it rotates when you move the selector and a drop of oil in the quick release mechanism. These things sound and feel so good once lubed they make my brand new 88-tooth Armstrong MAXX ratchet sound like it's full of gravel. I'm not kidding.