Stealing/Shoplifting

Is shoplifting any different to any other kind of theft?
This is an awkward question in a sense. I belive both yes and no. Yes you are not targetting an individual or not intending to harm anybody unless it is an armed robbery. on the other hand shoplifting is no different to any other kind of theft because you are still wrongfully taking something that does not belong to you no matter what the object is.

Why do people who can afford to buy things shoplift them instead?
people who can afford to to buy things i feel shoplift just for the excitment and the experience of shoplifting or maybe its for power either to show off their power or to flaunt it. or simply just to save money.