CES is a trade show and closed to the public, so average random Head-Fiers can't just get in. The only "Head-Fiers" that can routinely get into CES are people like Jude, Tyll (InnerFidelity), other members of the press, and MOTs. In fact I really know of only one regular Head-Fier who can get into CES, but I'm not going to name him, as I'm not not sure he attended this year (he hasn't been active lately and hasn't posted).