Step,
In the mid 1990's, when jet fuel was very cheap, RJ salespersons coined the term "prop avoidance" to foster RJ flying with a vew to further sales and had great success in this regard. Over in europe Crossair at that time conducted exit interview surveys with de-planing turbo passengers to gauge whether such an effect crossed the atlantic and had entered the psyche of their passengers.
Crossairs studies determined that provided there were on-time departures and that fares were reasonable and schedules were convenient, they (european passengers) weren't overly concerned as to whether there was a prop on the motor or otherwise. Corssair specifically canvassed passenger thoughts on safety and their results concluded that their passengers had faith in both the competence of technical staff and the design safety of their turbo conveyance.
Crossair, in this case, ultimately concluded that european passengers were more sophisticated than their american counterparts and not given to responding to marketing campaigns that questioned the safety of the turboprop aircraft.