It certainly isn't, in case you were being serious. The best powder obviously goes to the US and is the one that most American teenagers are consuming, be sure of that. The powder found here is expensive and of bad quality I hear.
Cali has been hit extremely hard by narco activities over the years. Poverty is all over the place and the richer societies are often those related to narco-traffic. There are sure a couple of interesting places to visit, and, depending on your taste, you could find plenty of pretty women also. But, as a whole, I really didn't like the city and I didn't find one single reason to go back. I would much prefer visiting Bogota instead, much safer and way more interesting in every aspect [except women, curiously].
...Oh, and absolutely forget about the Buenaventura idea. Trust me.