$8k/mo 4 br 1 ba in the East Village; am I getting ripped off?

Nah that seems pretty reasonable/normal. In-unit laundry is nice. I know some people in triples who are paying 6.5-7k a month, which is a higher per-person rate.

Also why don’t you just look at what comparable 4 brs are renting for on streeteasy lol.

You are not. We landed a similar deal but w/ 2ba and slightly bigger rooms, but the fee was 10% annual. It's just abysmal timing with the rental prices peaking just to fall down right after having the underlying house prices nosedive.

I pay this much for a 4br in EV but we have an extra bathroom and no washer dryer.  Ceiling heights are ~18ft which is very nice. 

Taking a wild guess here but are you in a walk-up building in Alphabet City? If so, fair pricing in today's market, maybe even a steal. But just look at StreetEasy for current asking rents (not last listed for, it's always incorrect).