Because stitch-and-glue boat construction uses a relatively small number of wood pieces a boat can be build in relatively short order. Because plywood is inherently quite strong for its weight the resulting boat is quite tough and lightweight with a minimum of additional reinforcement.
With all the modern materials available to make boat, why would you want to choose wood? There are several reasons. The first is that working with wood is well within the means of most people. It doesn't take a lot of time, the material is relatively easy to obtain and it is not too expensive.
Most wooden boats will actually weigh less than commercially manufactured boats. Because wood is structurally efficient, a boat built with it can be made quite light. The only real downside of wood is that since it is a natural material it is not necessarily consistent in its weight.
Most of the cost of building a kayak is labor, but doing the work is part of the fun so we won't count that here.
The most accessible techniques for do-it-yourself boat builders involves using wood.
Hybrid construction could mean any method of building a boat which combines two different building techniques.