Why to look for a cocaine alternative? Cocaine is - expensive, illegal, whereas, including my country, RCs are mostly legal. Cocaine has strong numbing effect which is quite bad for the heart and cocaine is cut as hell, so it is even more dangerous if you can't reach the good quality coke, plus bad quality coke has often very harsh comedown and the price-quality ratio is even worse. If I could choose between 10g a-PVP or 1g 40% cocaine (at the same price for me), I would definitely go for the first one, because last one would run out in a night, former one would last me weeks.