Some religious believers make pilgrimages to Holy sites. Talk about a mob scene. Just learning how to obtain a cab or bus or dinner reservation will take you the better part of your first trip.
Experience definitely counts there.
To walk the aisles of those cavernous halls and marvel at the very latest offering from the vendors of any product even remotely related to computing is better than a kid walking through an FAO Schwarz toy store on Christmas eve. It is the old plan your work and work your plan. Deviate at your own peril as you will undoubtedly return only to discover you never saw that special thing you had deemed essential to your visit. You will come home tired, loaded down with handouts and giveaways, and poorer. But you will also come home with a gleam in your eye at the marvels you saw and heard about before the rest of world learns of them in subsequent months.