cheap tools are more expensive then good ones - because you have to re-purchase the cheap ones again and again. but that's what the retailers want, and the consumers only see the "cost" of something as what is charged for it at the time of purchase.
That's true for pros who use their tools a lot. For homeowners, the cheap tool may be just right. It may only be used a few times. There are exceptions, like painting where superior paint and tools do a much better job, even if they are only used once. A person may be better off renting the expensive tools, too. The choice should be up to the consumer.