Is that really all they are used for? I'd be shocked if they weren't also used to identify VIPs and big spenders to do things that would generate additional rev

Is that really all they are used for? I'd be shocked if they weren't also used to identify VIPs and big spenders to do things that would generate additional revenue. Or do things like track the gender and age ratios to let the bouncer's know how many people of which types to let in.