It is definitely the warehouse crowd, which either goes 6-7 years younger than me, or 10-12 years older than me.
The warehouse district seems to be perfect for college kids looking to "hook-up" and cougars/single men in their 40's just divorced who are heading into the city for their biannual mandates.
Upstairs is for middle aged yuppies rocking out to 80's cover bands.
Downstairs is for 21 year olds who are still excited to be able to drink and dance outside of their friend's apartments.