I inspect anything I buy inside and out. I won't hesitate to walk away if it looks defective. I also have a feeling with certain styles and will wait for awhile to see how others experiences are with the item to see if it is in fact a defective design or not. This is not just with LV. Just as it was stated before, all items and all brands have issues in one way or another. Period. I have seen it with high end items and low end items, it doesn't matter which brand and it doesn't matter if it something we wear, carry, drive, or live in. Houses made in a hurry start to have issues quickly. Ask anyone in newer developments in certain areas where the builder has a history of piecing it together too fast and they cut corners. Same happens with every other item we purchase. Some of these flaws/defects are visible to the naked eye up front and some are hiding until there is a little bit of use, whether days, months, or years (I have known friends who all lived in same development with shoddy roofs and they got brand new ones after 10 years because they were found to have defects).
Part of the problem is the consumer. We keep buying and accepting all of these flaws, thinking we have no choice because it has become so widespread among all brands (or because we live in a throw away society where people think "oh well, I will upgrade or sell it for another anyway so will deal with it for now"). Go lurk and read in every brand's forum here.
Coach, Michael Kors, Tory Burch, Chanel, etc, etc, etc- they all have people complaining to a degree. Maybe some to a lesser degree or less often. If the retailer still is going to make money and do so with the least amount of expense to them, why would they change anything? They aren't going to want to improve designs or manufacturing at a greater cost when there are still mass numbers willing to overlook it (or do not know what to look for). Remember that not every consumer is on tpf and/or looks at things with a fine tooth comb. There are known issues with PM and yet they are always sold out online and in stores. I won't ever buy one because of the known issues, but there are TONS of people still buying them. Just my two cents.