it could be real.. in this months high times magazine in the thmq (trans-high mark quotations) where they do the the strains and locations on prices per ounce...

it has this information

Goo - $420/Ounce - Sioux Falls, SD
"The Goo is back and better than ever! This batch is superb!..."

doesn't say amsterdam goo but i guess goo is a real strain