Look, in the hands of a skilled artist, generative fill is really useful.

In the same way that the synth is superstitious is banging.

Sampling, when in the hands of a legend is also spectacular, see the prodigy and a break down of the samples they used. (or any half decent hiphop band)

Then you get akon who just sped up a single sample put a beat on it and shat out some halfarsed shit.