79% of US kids aged 2-14 acquired some sort of entertainment content in 2009

"According to Kids and Entertainment Content, the most recent report from leading market research company, The NPD Group, 79 percent of kids age 2-14 have acquired some form of physical or digital content in the past year, with 31 percent acquiring both physical and digital content.
According to the report, digital content seems to be an additional source kids turn to when they want to supplement their physical collections, which is supported by that fact that less than 1 percent of kids only acquired digital content.
In terms of money spent on this content by kids, $0.85 of every content dollar spent went to physical items, while $0.15 went to digital.
Video rental services and online music services were the top content-based household services or subscriptions used by kids ages 2-14 in the past year, with 19 percent of kids using an in-store video rental service, 12 percent using an online video rental service, and 14 percent using an online music service. Paid subscriptions to online video game rental services and paid subscriptions to online gaming Web sites ranked among the lowest."
Source: Press release from NPD, 5th January 2010