Following this thread I'm really starting to think the whole question is loaded like a landmine. "Why do people buy fake designer bags or fake designer anything?" Anyone who honestly admits that they do and explains why, which is the point of this question btw, is accused of stealing, a supporter of an illegal industry, or given the somewhat indifferent "everyone has a right to their own lifestyle but I personally don't do it" disclaimer or the "I used to but stopped so I'm all good"...none of which is an answer to the original question.
I mean the bottom line is because either the person didn't know it was fake or they simply like the bag, the price, and enjoy wearing it. As for all the negative implication attached to it, if it bothered them, they wouldn't buy it in the first place. And if they were gifted the fake, ultimately the same answer. It either bothers you or it doesn't - how complex can it be?
As for the rest of us responding, how about, do you feel better about yourself, pat yourself on the back, for not wearing a fake/replica/counterfeit when you see someone else wearing one? Do you regard that person with shock, disdain, outrage, pity, indifference, gotcha!, secret bag twin? (just had to add that last one). Personally, I think I fall along the lines of "gotcha" 'cause I'm pretty clueless.
And what about the whole idea of authentic but stolen bags? Have any of you bargain hunters ever wonder if the great NWT deal on Ebay is actually a stolen (authentic) bag? We've all heard of gangs targeting stores and leaving by the truckload, could one of them be the very bag you're carrying?
Frankly I'm more curious about who and why people steal office supplies (rhetorical question).