adj.appropriate for people with good incomes

"an upscale neighborhood"; "an upscale motel"

Upscale image transfer from malls to stores: A self-image congruence explanation
Use of agro-climatic zones to upscale simulated crop yield potential
Upscale integration of normalized difference vegetation index: the problem of spatial heterogeneity
Effect of information technology on performance in upscale hotels.
Using tracers to upscale flow path understanding in mesoscale mountainous catchments: two examples from Scotland
Customer Loyalty to the Salesperson and the Store: Examining Relationship Customers in an Upscale Retail Context
The effect of environmental perceptions on behavioral intentions through emotions: the case of upscale restaurants.
Price fairness and its asymmetric effects on overall price, quality, and value judgments: the case of an upscale hotel.
The effects of perceived justice on recovery satisfaction, trust, word-of-mouth, and revisit intention in upscale hotels
A comparison of competing theoretical models for understanding acceptance behavior of information systems in upscale hotels.