I find my deposits tend to reflect the nature and quality of the cache. A 2 second Tim Horton's find that was obviously set up without forethought or origionality will usually grant a small trinket from a previous cache (I don't really keep this cra .... stuff, I just move it around a little). A cache 750m through dense woods half-way up a tree disguised as a South American lizard will usually garner some fresh zippies, band-aids and/or wetnaps, a few pesos (these end up in my pocket more often then you might think) and whatever trinket or TB I happen to be lugging about at the time.
Ultimately though, like everyone else, it's the thrill of the hunt that keeps me searching and the awsome places I've seen that you may never come across on your own without a local guide ... which is really what the caches are.
