What To Look For
When shopping for a sit-on-top kayak, you'll need to consider is how you'll be using it. For fishing, you should consider looking for angler models that have spaces for cup and rod holders. Scuba diving kayaks should have a large external well for the tank. The best surf kayaks are shorter, making them much more maneuverable. If you'll be taking your kayak on long journeys, look for a touring kayak that is thinner and longer than traditional kayaks. It should also have a good storage space for cargo. There are many tandem kayaks available, some even allow you to bring a child or pet in addition to two paddlers. Consider also the stability of the kayak. According to Ocean Kayak a V-shaped hull has good initial stability that reduces the tipping motion when sitting in the kayak, but a U-shaped hull has good final stability, so it's less likely to capsize.
Common Pitfalls
One common mistake new paddlers make is buying the most stable kayak. While you don't want one that is too tippy, you don't want to only focus on initial stability. As you get to be a better paddler, initial stability isn't such a problem.
Where To Buy
While you can purchase kayaks at standard outdoor recreational stores, they don't tend to have the greatest selection. You are certain to find a range of kayaks online. The best option is to buy from a local dealer so you can sit in the kayak to see how it feels. Some kayak dealers also offer rentals. Some companies will even deduct the rental price off the cost of the kayak if you decide to buy.
Cost
Kayaks can range from as low as $250 for a basic, entry-level sit-on-top to several thousand dollars as of September 2009. Warranties are usually two to three years, depending on the manufacturer. In addition to the kayak, at the very least you will also need to purchase paddles and a personal flotation device, which can add another $70 or more to the cost.
