We go out of our way to get stuff that would make a worthwhile swap. It's just a pity that a number of people just don't swap fair. An example, we placed a monocular in one of our caches worth $15, was not a firt finders prize and it was swapped for something worth less than $2.
We are always having to visit the more popular of our caches and restock and take out the junk, so be it, it's part of the game of being a cache owner etc.
There are many sources of good stuff to be found, try searching for bulk on ebay, you may be surprised at what you find.