Rodelle vanilla beans at Richmond Costco
10 beans packaged in 2 tubes (5 beans each) for $11.99.
For exceptionally well priced vanilla, there's an importer on Valencia near Liberty that does web sales at www.saffron.com. Even with shipping I think you'd be hard pressed to beat their prices and quality, for either vanilla or saffron. In the past, I've picked up stuff at the shop, but they don't do that anymore. They do sell through an ice cream store across the street. I forget the name of the ice cream place.