Anheuser Busch 150th anniversary limited ed rounds?

Does anyone have any additional info on these? There's a small teaser on worthpoint, but it says you have to be a member. I guess they had a limited run of 5150 pieces, but not sure whether they were a purchase item, giveaway, or for employees. I picked one up for $30 at my favorite bullion shop today. It's seen better days, but still pretty cool. Trying to see about what kind of a premium they carry if any, cause I already went backwards on one round this week.
Thanks in advance