Hey I'm keeping my ///M too, no one says you can't have both an i and an M car simultaneously.
As for posers, well that can be said about practically any exotic car. In fact with the vast majority of Ferraris and Lamborghinis and R8s likely never seeing a racetrack, let alone being driven hard on one, the i8 might at least be more likely to be used to its full potential as an urban vehicle cruising in comfort mode and occasional canyon blasts (or here in Florida, freeway onramp attacks and spirited stints over all 3 corners in the whole state) in Sport mode