Even in a digital world, analog, or, indeed, shopping in person still reigns on the day after Thanksgiving. Forecasters expect this year’s Black Friday to be the biggest retail sales day of the year for the sixth year running, even though online sales will jump considerably, 16 percent over last year. Analysts say penny-pinching consumers have held back in recent months, waiting for Black Friday sales before spending. Some say Black Friday promotions have hit their apex. “We’ve reached a point of diminishing returns,” said a retail consultant. "How much more promotion can you take on the most promotional pre-Christmas day of the year?"