im not from usa but i would say he is full of shit.
tell him you will give him $1500 for 10oz which would give him an easy $400 profit and see if he goes for it or not.or ask for a sample for a buyer.
if he goes for it and the weed is good, he is a grower looking for buyers or a mid man.
if he makes excuses about not being able to get it for you over a prolonged period (10 weeks for example) then he is just talking out of the small brown hole that he had filled up in prison at some point, hahaha.
as he is probably the sad life version of forest gump.
my pricing may be off somewhat as im not from the US but the advice is sound.
) and it is top quality and pulls the higher pricetag of 5-600... the rest though, is more locally grown and tends to be rather generic... it looks good enough to sell at high prices, but the buzz/potency leaves much ot be desired... this can still be picked up for 350-400, but good luck finding someone that will give you a straight deal.
....
...
... imports are always more expensive than domestic 
