I think a lot of your thinking here is assuming somewhat frequent use - and I agree when you are going to be using the tools often, just get a decent or good one. For a lot of tools though - well lets just say my tool chest has an awful lot of things I need that one time 20 years ago, and haven't needed since. Often I don't know which tools are going to be in that one-use category, so the algorithm "buy the cheap one, upgrade when needed" has overall saved me more than enough money to upgrade to the really good version even for tools I use relatively rarely.