I wonder what the criteria is for vinyl release?

It's something that I've actually been wondering about since Vinyl started coming back within the last 5-6 years. But with other artist, the ones that got Vinyl releases right out of the gate were bands and singers that already had a huge following of some kind, with the exception of Chickenfoot. But that band had 4 superstars with name recognition, so they were able to leverage a vinyl release themselves.. Winery Dogs, as awesome as they are, individually, they are not household names beyond the fanboys that would be buying their stuff.