It's been said that the high isn't what keeps the user on the drug, it's the comedown.. actually, I just made that up, but the idea is fairly accurate - the high is only so-so, no biggie... but that crash just sucks, and thats why so many get psychologically hooked - rather then deal with the crash, they use more coke...
If you want to avoid the crash, well, thats what benzos are for! Seriously, like as little as 1mg Klonopin taken right before you do that last line, and you will be feeling good until you fall asleep ..
I don't really use coke anymore, but if I do then I require myself to have benzos on hand.. (or better yet, opioids) ..