Triggered by the pending success of Quality of Service (QoS) differentiation in practice, recently the research interest has been increasingly focussing on the user-centric marketization of QoS, especially for interdomain scenarios. In this context, the key role of readiness and willingness to pay for enhanced network quality has not sufficiently been covered so far. In this paper, we focus on the users’ willingness to pay for realtime network quality in interactive Video-on-Demand scenarios from an empirical perspective. Our user trial results indicate a broad willingness to pay for enhanced network quality, as well as remarkable influences on the quality perception through purchasing decisions, which is expected to kick off further experiments and the adaption of existing Quality of Experience models.