I dont know who sells bowls either.
but before we judge this guy maybe we should stop and think.... maybe he has a bowl a fat bowl that holds approx. .5 g's....
He was buying some premium blueberry buds(probably cured to a nice lavender hue,glistening trichomes,Intense fruity smell and taste)from a buddy/dealer who had no scale....maybe the dealer asked if he had a pipe....when the reply was yes and he seen the size of the bowl,he packed it once,dumped it re-filled it and took it out wrapping the weed in tin-foil or a gram bag for the customer.
like i said if it was a nice bowl he could have got as much as a gram of some Danky Primo buds for $10.not bad

Hey it could happen.I'm smokin some fine Grapefruit Diesel right now so....my imagination is quite vivid right now..