I never got into the coke thing. I did it a few times while living in a house with a bunch of guys who were into the stuff. My friend, who dealt coke at the time, would give me coke for about 35 a gram. It was definitely not pure, although it was the highest quality I had experienced in my limited encounters with the white beast. I moved to a different house the following year, and that's when my former roommates REALLY got into it. They did an ounce in one night, split between 5 or 6 people. A few months later, they met some new connect who picked them up in a limousine to do business. They were supposed to get an ounce, but the guy shorted them and gave them a half ounce instead. They were upset at first, until they realized that it was the most bomb shit that any of them had ever tried. They cut the shit out of it and made a bunch of money lol.
I find that the stimulation and euphoria do not outweigh the much longer crash/ comedown. I tried coke for the first time because my girlfriend and I had broken up. I thought it would cheer me up, but it was just a temporary distraction, and I ended up feeling worse at the end of it.
Some friends of mine smoked crack without realizing it once... They were getting their house painted, and the painter saw them smoking blunts and blowing lines. He asked to join, and they obliged. Then, the painter asked if they had ever smoked cocaine, and pulled out his pipe and rock. They all took hits, and said it was the best coke high that they ever had. They told their story to my other friend, who brought it to their attention that they had smoked crack. They were pretty embarrassed, but more so for the fact that they liked it!