“but my impression is that a “dime bag” of powder cocaine almost isn’t a thing since $10 is such a small amount”
Always $10 worth, and you are exactly right, it’s not much at all. Only enough for two small lines. Or a small rock enough for only one high if smoked.
Reminds me of the Richard Pryor routine about Leon Spinks:
Richard Pryor : Here is a [] that gets busted for a dollar and fifty cents worth of cocaine. Do you hear me, a dollar and fifty cents worth of cocaine. Have you ever sen a dollar and fifty cents worth of cocaine? A dollar and fifty cents worth of cocaine melts before you open the paper. You’ve got to have a ballistics expert on the spot to examine that kind of []. And people always say ‘well how did he get busted for a dollar and fifty cents worth of cocaine?’ I have a theory. Would you like to hear it?
Richard Pryor : [audience collectively yells ‘YES’] If you buy a dollar and fifty cents worth of cocaine from any cocaine dealer in America, HE’S gonna tell on your ass!