That's not always true. Most of the startups I've seen get funded are not always that interesting to me. Interest is in the eye of the beholder and for people looking to work at a startup whether as a career choice or for experience before launching their idea, they may or may not always be working on an idea or work that is considered interesting to them personally.
For the other things, we hit almost ALL of those. Nice, spacious space in Mountain View, near lots of restaurants. Our office manager bakes cookies for us, gets snacks, and drinks are provided (everybody had to sign up for the beverages they specifically liked) etc.