i've recently been thinking about where to draw the line between using the same sample in multiple tunes because its one of your trademark sounds, and just overusing it, like many of the alien project tracks. he uses the same samples in every track, which is just lazy and crap. but take rinkadink for example, he has his own trademark sounds, some little reverse whooshes, and i reckon it just gives the track that rinkadink effect. apart from that its not just recycled sounds, though he's not the best example.
to sum it up: if i use the same sample in multiple tunes, i do it just enough that it makes my mark on my music, and it will usually be a sample i made myself, so people hear it and know its a Fromem Ory track. using and abusing a sound over and over again is not such a great idea, and that goes for synth presets as well.
the worst part for me is making new drumkits in battery every time i make a new tune, but i think thats important...