I am looking to purchase some seeds off DrChronic.com and was interested in the nirvana seeds. But i was looking at the Sativa Seeds page and it seems that a lot of these seeds are out of stock. Is this because they're very popular or because they're rare? I'd love to know more about these seeds. If anyone has grown these in the past or is currently growing I'd love to here about ur experience. They also seem to be heavy yeilders. Any information on these seeds would be greatly appreciated.