$5 bucks gets you in the door, and a medical card is not required. The Expo Group's website says to expect:
• Don't Have A Medical Card Yet? Learn How To Get One
• Shop Dispensaries (no medication at event)
• Stage Presentations:
The danger quotient of the "fashion" in question remains to be seen, but we'll post this clip from season two of Flight of the Conchords just in case.