Marketing is all pervasive. They're getting marketed products they can't afford - can't ever hope to acquire. They believe the only way they're ever going to achieve happiness is the acquisition of these products. Products they can't afford. They see people living that lifestyle, and they have that lifestyle beamed incessantly into their minds through media, which you know I participate in.
What color is a chameleon placed on a mirror? ... The chameleon responding to its own shifting image is an apt analog of the human world of fashion. Taken as a whole, what are fads but the response of a hive mind to its own reflection? In a 21st-century society wired into instantaneous networks, marketing is the mirror; the collective consumer is the chameleon.
Mobile communications have two functions: as a safety net, and as a marketing tool. I think it'd be foolish to not carry one for safety sake. Using one for marketing is an optional activity, and I've generally stayed away from extensively using one for this purpose because it's a distraction.