I just read an excellent article on Punny Money, titled The True Cost of Do-It-Yourself. It was so good that I just had to recommend it right here.
Nick accurately and completely captured my feelings regarding the Do-It-Yourself industry. The true cost of do-it-yourself is what Nick calls the "Oh Crap" factor. The cost of completely and needlessly screwing up a basic home improvement project.
What Nick doesn't say is that in addition to the "Oh Crap" price, there is also a mental price do-it-yourselfers are liable to pay: the price of feeling like an utter and miserable failure at failing to complete a simple task.
My motto: if it involves a screwdriver, a hammer or any other mechanical contraption or tool, pay someone to do it!