As with anything in life you get what you pay for and if price is no object, then the ball for you is the Titleist ProV1 or ProV1x. For every man, woman and child this is the best ball out there! Just check the PGA Tour ball count each week. A dozen will run you in the range of $48 - so no, they are not "giving them away". If your swing speed is under 105mph with the driver then you should more than likely be using the ProV1 - if above, then the ProV1x. The balls have a slightly different dimple pattern with the ProV1x encouraging a higher and later peak trajectory and the ProV1 pattern being for a more penetrating trajectory in the wind.
To learn more go to titleist.com
If price is a concern, then you could do a whole lot worse than the Bridgestone E6. A dozen of these beauties cost in the range of $27. This is a Surlyn covered, three-piece ball with a dimple pattern that's designed to generate high initial velocity and a shallow landing angle. The soft mantle works to reduce spin, particularly on driver shots, and thus is often described as the softest multilayer ball on the market. This is an inexpensive multilayer distance ball that has good feel on and around the greens.
To learn more go to bridgestone.com