I found this very interesting. A post on a different blog talks about the design techniques used by architects and casino owners to influence the gamblers in different ways. Check it out.
5) Loose slot machines — ones that pay out more often — are placed near highly trafficked areas (e.g. the aisles, change booth, restaurants, etc.) so more people witness winners.
6) There’s constant research on all aspects of the sensory experience: scents, colors, interior design, and the angles of lights (e.g. light that hits people’s foreheads is a no-no because it apparently drains gamblers of energy).
Crazy, right? You can find the rest of it here.