New looking versus old and tattered

Today I had the privilege of donating a few items to our local Goodwill store. After placing the items on the donation counter I decided to take a stroll around the store. I had no intention of any purchase I just wanted to look around and catch an idea or concept to ponder on. I really didn't care to look at clothes as my weight is in the least desirable state, so I headed straight for the house items. There was a collection of flat plates in better shape than my own dishes at home, but the disarrayed arrangement made them least appealing than my dishes. I also look over the wine glasses and other items. My eyes couldn't concentrate on a single item, but I managed to put together a set of six goblets for a mere tree dollar price. I then kept on my search of nothingness just to satisfy my own curiosity. To my surprise I noticed a whole isle of books. This book area was made up of two long, maybe 10 feet long metal bookcases, about 5 feet tall. I have never noticed so many books in a thrift or second hand store. All kinds of book. Some were nicely preserved and seem newer, others show sings of age but not wear. There were so many books of the same title about new mothers. Even some textbooks took the place on these shelves. I must have spend about 40 minutes in this area, because I opened and read random pages of many books. The information withing the pages was intriguing, useful and in some cases accurate. Why were such books discarded? After all they were priced next to nothing for a dollar of less.
I must say that they state of some of the books look rather old, as if they belong to yesterdays gone by decades ago. This made me realized that we have becoming accustomed to discard old looking things even if they are in good, useful state. We like new things even if the quality is inferior to that of an old item.
What consequences should we expect on the future from altering our aesthetic taste? How much extra and unnecessary rubbish are we going to accumulate in the Earth's crust from this new thinking? There is too much to ponder on this subject but in a later time.