Children's play area? At least, a children's table and chairs with books and small toys
Coffee? No
Rude sales people? Not necessary
Smells? Not necessary
Kits? One of my local quilt shops lets me order kits in whatever fabric I want, and they call me when it's ready. If you do this, I would recommend getting a nonrefundable deposit before you cut the fabric.
Samples? Samples of what?? I've visited dozens of quilt shops in PA, but I don't remember ever being given free fabric (other than a free fat quarter with a purchase sometimes).
Music? Yes, but not too loud
Sewing area? A must for classes and demonstrations