Although expensive, Wilderness First Responder course are worth it. Be sure that they also teach emergency protocol (how to properly go get help or evacuate the injured). You also would get more benifit from the wilderness course if you were to take a free or low cost basic first aid course beforehand (or read a book on first aid), if you have no previous first aid knowledge.

Discount course may not offer certification or adequate "hands on" practice. If you choose a cheaper non-certified course, be sure to get an outline of the course to see that all areas are covered adequately.