Only the S, M, and L dim sum here are $3.20 each if you pay cash before 11:00am everyday except on holidays. This place is not cheap, but you pay for not having to wait for a table or a parking spot on a Saturday morning (as some say, time is money), fairly high-quality dim sum, cleanliness, comfortable seating, and decent service. It really depends what you value to determine whether it is worth or not.
If you have kids who don't like dim sum but prefer fast food, you could try ordering the Deep Fried Fish Cutlet or Shrimp Mousse with Sweet & Sour Sauce. Though still unhealthy, at least these should satisfy their fried food cravings.
Of the things we ordered, I recommend Siu Mai with Fish Roe (a solid staple), Cuttlefish in Curry (they were huge with bundles of vermicelli aka "wu see" underneath), and the sesame and mango roll for your sweet-tooth friend.