I know the purists will jump me, but it's a no-pressure way to screw around with bets you might not normally make. I've played at Caesars (nice results) and at Bellagio (other results). Trying out some Don't betting without stinkeye from other players, pressing and taking down bets with abandon. I really like it as an afternoon diversion. In the evening, when feeling like a Master of the Universe, there's nothing like felt, but I think e-craps is developing a following among people who like the action but don't care for the incidentals (rude dealers, people throwing five 20s on the table in midst of hot roll, chirpies, hands, etc.) And there's still some camaraderie around the plastic dome.