When something is broken, torn, worn out you replace it right? Or do you fix it?
From experience I have found that you can fix a lot of things, sometimes things are better when they are fixed rather than just rushing out and getting a new one. There is the excitement (of course) with getting a new one. But old ones can have character which you may not find in the new one, a sense of 'knowing' and feeling a certain amount of comfort with the old one.
The new one could breakdown, tear, wear out even earlier than the old one? The new one could cost you a lot more money that the original cost you or it could turn out to be a whole lot more economical. The older broken one is going to cost you to fix it though, and then who knows it could breakdown again?
Often the new ones smell better though?