During its first two days of availability in Japan, the PlayStation Vita sold 321,000 units, leading consumers and the mobile gaming market to believe that Sony may have a winner on their hands, even before the United States launch of the portable gaming system. However, recent sales numbers for the week of December 19 to December 25 show otherwise. Sales numbers for the Vita plummeted to a little over 72,000 units. 

Nintendo saw a similar "issue" with its launch of the 3DS, but it quickly resolved the dilemma by reducing the price. As a result, sale numbers quickly rose once again. Sony may have to do something similar soon, especially considering that it plans to offer the Vita in the U.S. beginning in February for $250. That's $50 higher than an entry-level iPod touch. 

"All good things must come to an end" might just be the appropriate saying here.