Sometimes these specialty tools earn their keep with just one use. I have that Cman version, and used it one time (probably just to see if it works) in a spot where I really didn't need it. My point being, tools like a screwdriver with a self holding tip (and there are several types), got me through in a real pinch last week in an upside down screw application, where I need to use my my non-dominant hand to start the process in a near blind situation. Other than a separate trip to the attic, it brought me great joy to use a tool for it's (rarely) intended purpose.