a joint of decent shwag goes for about $2 around here...rolling only comes with lots of practice...make sure that you trust the person your buying from when you dont know that much about it...an 1/8th should weight 3.5 grams, and usually cost $20-$30 for mids. invest in a little hand scale, and learn who hooks you up fat...

cannabis sativa: HAHAHAHAHA
cannabis indica: a body fuck, fresh from the stoned

oh, and dont take the brown acid