Nobody's entitled to anything. Newegg will do whatever they need to balance consumer happiness with their profit margins, and, if they can swing it, that'll include what you want.
This is sorta true, but it's not laws as such that accomplish it. It's actually the existence of any institutions that guide the behavior of people, whether they are just social traditions, or religions, or laws.
For example, I've found that in China, people don't tend to line up for the bus. When it's coming, people just crowd around, and so the pushiest person is the one who gets the best seat. We don't have this problem in the US, but it's not a law that solves it for us. It's because our culture has inculcated into us the idea that each person should wait his turn.
Conversely, the imposition of a law doesn't necessarily "fix" the problem behaviors. For any law to work, people must accept its legitimacy and be willing to abide by it. And there's a bit of a Catch-22 at work there, because when everyone is breaking the law, an individual will see that on an individual basis, his compliance puts him at a disadvantage.
There's actually been a good deal of research, especially by Bill Easterly [1], examining what institutions tend to make some cultures thrive, while others languish in poverty.
