I move a lot of trackables around also. I have picked up several of these copy's. They just aren't the same. I have a bunch of coins and trackables out and I forget about them as soon as they leave my hands for the most part. I do like it when I get a notice that they have been discovered and I look up the location to see where they have been. Several times I have bought two or three coins at a time. After a while I start thinking about the caches I have visited without anything trackable in them and think, why am I keeping these things. They are meant to be out and being discovered by cachers, so off they go or I give them away. Collections are OK, but it would drive me crazy bringing a collection to an event and worrying that the coins might get lost or go missing.
For me a collection is a waste of money and too much trouble.
I would not and have not drilled or made copies of anything to send out. It just isn't the same.
I have no enemies, but I'm intensely disliked by my friends.