I do take pictures with my iPad for quick things in good quality - usually at home, though. Sometimes when I'm out and about on vacation trips, too.
I usually use my iPhone to take pictures of things when I'm out with friends, or see interesting things in the city, etc.
I have a professional Canon camera that I use for events, parties, graduations, and hobby photography.
But I have used my iPad to take pictures, and I do regularly as well.