some people simply don't get the whole sampling thing and that's fine, it's not made to appeal to everyone.

i have been making hio-hop for 10 years now and i will sample from at the very least 5 diffrent sources to make one track. some times from 20 sources in one track.

first reason, sampling is an artform in itself, not a way to make yoiur track sound like the one you sampled. looping a musical sample and a breakbeat together was only cool before samplers existed (RUN DMC's Jam Master Jay did it with turntables to a 24 track tape recorder)

now with samplers, being creative with your samples is where talent comes alive. the sampled sound is a very specific one and quite appealing to many. that warm "saturated-tape-recording-from-vinyl" sound. when i make a track, people can only spot where the sample came from if i conciously decide that i want them to. i will either take the sample to hell and beyond so that one person in a million could tell or i will sample from extremely obscure sources so that only one person in a million may have heard the original (50 or 100 years ago ) . don't be affraid to use the kick, snare and hihat from three diffrent beats and make your own so it sounds sampled but doesn't come from an original song. or to make an 8 bar melody from a piano sample, a flute sample and some horns that all come from diffrent sources.

some times you will have to adjust the pitch, and some times you can have a very cool dark dischordant sound that will work well and make your music a little mean.

i don't only make music for Rap, but it's my bread and butter. for myself i make trip-hop and electro-jazz. in those styles i will use more played parts mixed with sampling.

i also like to chop a sampled phrase and play it in a diffrent order while not even using every slice of it. that way you come up with the melody but you have that exact sound you liked from the original piece.