I agree. There should be a Duty Roulette: Raid. Or, Duty Roulette: Towers. Or something. If it was Raid, then Alexander/Coils would have to be implemented as they are raids. Perhaps calling it 'Towers' as the roulette name would be sufficient. I haven't tried to get into a Tower since patch for music or anything, but I'm sure it is still hard to get into. And thus, I support this idea of yours.