Before the film came out, the Blick's store near me where I had first bought some BR stuff over a year ago had a full end cap of BR paint, brushes, etc,,etc.. Its all gone now.. every piece. I believe its available online but not in the store.
Steve made it clear that while his dad wanted him to take over, Steve wasn't interested in it at all. And freely admits that it was something akin to rebelling against dad. I'm sure we will never get the whole real story of this. Too many colliding interests. And bob was not the only one doing this style of painting. I've found several folks who did the same style or slightly different at the same time and some still do. But Bob had a certain charisma that was unique to him. Alexander has better art I think but he sounds like he's attacking the canvas every time he paints. Robert Warren does more detailed paintings but just doesn't have the same delivery as Bob. Jenkins has great art but again, the delivery is a bit scattered and just not the same.
I'm grateful we have what we do from Bob from "the day" and it's as high quality as it is. Alexanders recordings are not nearly as good and others do not have any available unless you buy them.