As people have been asking just how fast the $199 PS4 climbed the charts, to compare to the $189 X1S, I combed through the thread and compiled that information. Note that the PS4 was sold out for most of "Day 4:"
Monthly
Day 1: #58 to #13
Day 2: #13 to #9
Day 3: #9 to #5
Day 4 (sold out): #5 to #4
Yearly
Day 1: Unranked to #98
Day 2: #98 to #71
Day 3: #71 to #54
Day 4 (sold out): No Data