High-speed bus company WILLER appears to be strategically targeting consumers in the 6 million yen annual salary range. This is inferred from recent marketing tactics which seem to cater to needs and preferences specific to that income group. The strategic move may be a response to current economic conditions or a pattern observed in the route utilization.

In Japan, which heavily relies on public transportation, different companies strive to vie for a share of the market. The type and quality of service are often differentiated and targeted towards specific demographics, such as salary brackets. In this case, consumers' annual income implies their spending capabilities and lifestyle preferences, which WILLER seems to be catering to.

In the US or EU, while public transit systems aim for widespread accessibility, each system or company may not aim their services towards specific income demographics as directly as observed in this case. It is more common to see differentiation based on the routes and areas served (urban vs suburban, regional differences etc), with luxury features being offered more as an option for any commuter rather than a targeted feature.