Nostalgia is funny in that we see things as children and don't realise how profound an effect it has on us until much later in life when such material is realsed on DVD.
I would not be far wrong in assuming that most of those purchasing this will be in the 40+ age bracket with young children.
For myself this is pure and utter nostalgia alone. If, as one reviewer states it's dated that is because it is 1969 to 1974. These were the formative years of my youth and yes I do remember Mr. Hooper (or as Big Bird called him "Mr. Looper") and I remember Mr. Snuffleupagus being only visible to Big Bird.
What I remember are things like Jim Henson's chef falling down the stairs carrying specific numbers of deserts, the songs "Who Are the People in Your Neighbourhood" and "One of these Things is not like the others" but I never realised until I once saw the credits that the human inhabitants of the street were actors not that it matters now of course.
Most of all I remember the really psychadelic animations, such as the Pinball Machine - of course I use the term "psychadlic" here with hindsight but they were pretty outlandishly garish for early 1970s childrens television.
What most people perhaps do not understand about Sesame Street is that they were doing something totally new - to try and break down barriers through learning - to show a diverse group of people - black, asian, african, spanish and use adults and puppets in a way that had never been done before. They never talked down to the target audience but at them and involved them in the activities being shown - in a way it was the pioneer of interactive television.
Then there are the Muppet characters - Kermit, Big Bird and Oscar (created by the late Kermit Love), the Count, Cookie Monster, Grover - all doing quite radical things - Kermit as a news reporter reporting on "fairy stories" or the shady character who wanted to sell you a letter "O" and not forgetting Bert and Ernie - they were styled after an orange and a banana but they almost look like charactures of Henson and Oz.
Sesame Street has probably had a profound impact on a lot of British and American youth who are now themselves parents and they could do a lot worse than show young children classic episodes from a much loved series.
Nostaliga or education - both dependending on the age of the viewer.