Just saw this episode a couple hours ago. I liked it a lot. So many giffable moments and awesome scenes/lines. It was incredible: "Every time we get a car this place turns into a whorehouse" (which works on both levels so well), Ken dancing, "I can't hear anything, it's broken", "Are we negros?", the elevator scene, the x-acto knife, Don running around everywhere, dat StanxPeggy, etc. At times it seemed like it was getting a little too close to being too self-indulging ("Hey, everybody's high! Watch them do stuff!"), but the parts with substance and meaning really helped balance it all out.
I really liked the idea that the meth was making Don re-examine everything while trying to get Sylvia back. It really felt like this episode was the culmination of all the whore/Sylvia/mother/sex themes being thrown about all season. The framework for this episode has been slowly (some would say redundantly) built up for quite some time, but I feel the elevator ride would be a great way to cap it all off. Of course, it's Weiner, so who knows what he's up to (I thought The Summer Man was the conclusion to all of this, actually, but now it seems like that would be getting off too easy).
Unlike almost everyone else I felt the flashbacks were essential to this episode, even if not necessarily for every other one. I have had issues with the development of Don's story before, but I feel like every flashback development this season has brought something important to the table. I mean, it was established early on that Don was raised in a whorehouse and that he views sex as a transaction and blah blah blah, but is that really the only thing people are gleaning from these episodes? I mean, first we find out that his mother had to move them to a whorehouse and become a whore to make ends meet. She forbids Don from having sex or pretty much even thinking about anything sexual, then he sees her bang his uncle. He's in the sexually formative stages of his life but no one helps him understand how it all works so he has to figure it out himself, using the fucked up environment in which he lives as a guide. Then this Amy lady has sex with him and for it she is fired and he's beaten. On one hand he's being punished for the sex, but then it's undeniable he really loved it. I feel like this losing of his virginity followed immediately by hatred from his mother is really the most important aspect of Don's childhood life that we've seen by far. It really goes the distance in explaining the sexually lost and confused man that Don has become.
To me it's a great deal more developed than just "man, growing up in a whorehouse really screws you up" and I feel like the only way to get the right picture of it is through these occasional windows we get of his childhood. I mean, it's not like we get flashbacks of him taking out the trash or how he got his tattoos, it's all pretty big types of deals.
I also think him losing his virginity and getting punished for it really serves as a great metaphor for his sexual conquests throughout the whole series. He cheats and cheats and cheats and it almost always ends up badly for him (or her), but regardless of how he is punished he keeps doing it because his environment encourages him to and he wants it badly. In this episode he blows a whole weekend trying to divine the magical pitch that will return Sylvia to his arms, but then when he returns home and finds his entire home life shaken in his absence he realizes that his lust has yet again punished him. It's possible over the night he finally put together the pieces of his maternal issues (evidenced by his oatmeal pitch), his need for Sylvia and his sexual issues and therefore came to the conclusion that it just wasn't worth pursuing any further.
The long, silent, awkward elevator ride was just an amazing conclusion to the super-adrenaline-fueled Odyssey of that whole weekend