I didn’t come here for a hair cut
This is like telling a friend you're not there for the nonsense. You're there for the real stuff, and if you don't get it, you're going to be very upset.
He walked into the bar and said, 'I didn't come here for a haircut, I came for the drinks and the fun.'
She showed up at the meeting and said, 'I didn't come here for a haircut, I came for the answers.'
He walked into the store and said, 'I didn't come here for a haircut, I came for the discount.'