I don't know if If I agree with the brooklyn hipster rock comment. The Manhattan stores' greatest strength is in their used collections that come out of circulation from the people in the neighborhoods. Diversity and rare cool records is more the style, and the in/out flow is strong.
It's true that there aren't many Detroit focused vinyl stores in Manhattan, but there are tons of generally great record stores, there is especially a high density of them in the East Village/LES The best bet for new techno, is Vinyl Market at 10th St just west of 1st Ave on the uptown side. It was closed for a while, but had reopened last I checked (a few months ago). Academy on E 12th is just a few blocks away and is excellent for it's all around selection. Maybe they don't carry much from detroit producers, but they do have a great disco selection, and even an italo section. There is another vinyl shop a few blocks east on 12th, I can't remember the name. I think maybe between A and B. It is smaller and caters towards rare breaks records/funk etc. It's smaller but a cool selection. Again unlikely to find much detroit records, but I did get a Sadistic Mika Band album there the other day which is cool no matter what. Gimme Gimme Records in 5th street east of 1st Ave has a good general selection. Sound Library (I thought it was on Orchard below Houston) is also cool for old disco/electro/80s dance. It may have moved to Ave A like discogs says, but I doubt it. I haven't been in a while. Also check out A-1 on e 6th between 1st and A. ... .... .- .-. . -.-. .- ... ... . - - . ... bluegreengold cassettes ]3 |_ |_| [- (_, /? [- [- |\| (_, () |_ |).|\| [- ~|~ now available: the real perfections C60 kanovanik C60, acoustical cave band C60, hanayo "Frog Garden" C30, upcoming releases with cj kool mu aka sendust, firehorse, robert burton... www.bluegreengold.net