For me personally, I go IFR or I cancel if I know I can't make it in. If I go try the approach and its a 50/50 chance of getting in, then I carry lots of gas and bump off pax/cargo if reqd. I don't see the need to make things difficult for no reason just for pop and chips deliveries with the 300-1 crap. I know there are people who do it, I just hope everyone stays safe.
Also, how many times a year are there days with 300-1 weather? Not alot. Most of the time up north, its cold and clear in the winter. Wait for tomorrow, jeez..