You know, for me it probably isn't that big of a deal however, the older I get and the worse my eyes and hands get, the more I could see this being a useful tool. My dad would have some use for it. The only problem I would have is trying to find it when I need it! I think I might spend more time looking for it then it would take to just do it.
It will be a niche type of product. Tournament BASS anglers that are constantly respooling rods, reels, and so on, would find it particularly useful. The average angler might not necessarily find a need for it nor will the guy that keeps his rods rigged for different things.
ICAST is pretty cool with some of the stuff you get to see and hear about. If you are star struck by people (which I am not) then you would find it fun to go and rub elbows with some of them.
I have OCD "Obsessive Crappie Disorder"