The quick, witty dialogue of Gilmore Girls is an homage to screwball comedy films like His Girl Friday and Bringing Up Baby. It works surprising well, largely because there are different levels of speed talking: Some characters can keep up, others get lost, and some try on certain days and prefer to be normal people on other days. References and allusions abound as well. Some of the cultural references are highly obscure - that is, even with your ability to pause and rewind the world of Gilmore Girls, there are times when even the viewer can't keep up. This is all part of the fun of a dialogue-driven comedy that serves its main characters far too much coffee and a hilarious amount of food.
When the plot turns serious and the dialogue slows down, the sparkling planned community shimmers away as the stuff of real life creates drama. I appreciate that the writers understand the need to feel drama slowly. You can't banter through it, because only happy people relish in clever games.
It's hard to explain how a show about mostly white, middle class people living in a crime-free fantasy has become so popular, especially on the WB, which has been one of the few channels to embrace all of America's cultures, races, classes, and so on. I think the answer is that the relationship between a single mother and her daughter and an absentee father is highly translatable to many Americans. There are many conversations detailing Lorelai's struggles to provide for her daughter. Viewers also empathize with the weird and uncomfortable encounters with rich, elitist people, namely, Lorelai's parents.
The DVDs are somewhat lacking in extras - a making-of video and some extended or extra scenes are all you get. I think fans of the show would enjoy a dialogue dictionary of all of the references the characters make, a list of the books Rory and Jess are always reading, a map of Stars Hollow, a coffee cup, and Sookie's recipes.