I have a real penchant for descending, the faster the better. When last I don’t take massive risks, I do need to feel confident when up to speeds on 50mph at times.If I had to decided on a tyre, I'd just pick a best value in class for the type of riding I do most often, and stick with it. Personally, I had one too many offs with a pair of slick 25mm tyres, so opted for the best grip tyres I could find for my budget.
Tyres are consumables, so if you make a bad decision, it's only a few thousand miles before you get to replace them anyway, most of us are not trying to win races, just don't sweat it and enjoy the ride with what you have, providing you are confident on they won't slip out from under you on a tight corner.
I agree with what your saying though, I won’t get any for the sake of it, but don’t like to waste money either.
I am tempted to grab another set of Corsa G+’s, when the S-Works Turbo’s wear out though. Just wonder how gumwalls will look after a Winter. Lol