I would say that key inventions such as the printing press, mass production and the internet have all made the production of goods faster and cheaper and the distribution of goods easier for the customer. This, in itself, has devalued many goods and our response to this would be to treat these items with less care since we know we can always go out and buy another one. Maybe the problem here is when it comes to how we treat another persons belongings since this could surely cause friction between people. A carelessly broken item always seems worse when it is another who breaks it rather than yourself.
However, the more expensive items are still treated well since they are harder to obtain. This shows that we treat things at the value of which they should be treated and this value is largely determined upon how easy it is to gain something and how much we want something.
Therefore, I think that if you find it incredibly easy to make friends, maybe you will value them less. Afterall, if you lose some you know you can get more easily. This can be seen in the social stereotype of the popular kid at school with hundreds or not-very-close friends as opposed to the social outcast with a small circle of close friends.
