I've never EVER read an interview or watched a video of a top name producer that makes his/her own sounds. It's dumb and there's absolutely no reason trying to reinvent the wheel and create something that already exists. The people who actually BUY music don't care or even have any sort of knowledge as to how any of this is done. If you find a sound you like, sample it, because there is a 99.99% chance that artist sampled it also.
I can't remember the last time I was dancing at a club and the girl was like "I love this song but I hate how he keeps using Vengeance samples." People don't know and don't care. Just make it sound good.