I love G30. And I don't golf. I actually see it as an all-purpose lens. Yes, it is a bit light for super-sunny days, but better than nothing at all... and it is quite wearable (i.e. not too dark) even when overcast.
Best thing of all: you can actually tell people you see the world through rose-colored glasses.
I hope G30 doesn't totally disappear. Prizm Golf is nice, but I have the same issue with Prizm that I do with polarization... it is almost too high-contrast and gives me eyestrain.