Wedbush Morgan's Michael Pachter said in a research note today that he expects US "software sales to moderate to the low single digits in December due to tough comps."
December's NPD figures, to release on January 15, will round off a year that's already seen overall growth of 21 percent compared to 2007.
Pachter noted that November had shown solid growth year-on-year, with console software sales up 11 percent and PC software sales up 38 percent.
Hardware sales were up 11 percent in November.
The analyst has given no hardware sales estimates for December as yet.
By Mike Bowden