This week’s San Francisco Business Journal has an amusing story by Ryan Tate on the pricey, swanky new bars and restaurants opening up in the area. Some, like Vessel in Union Square, will cost patrons $500 for a full table – and that’s sans champagne – it’s just the price of sitting down. Proprietor Sunwoo Hwang credits the success of Web 2.0 companies and private equity to the rise in ritzy nightspots.