 Activision Publishing chief executive Mike Griffith , in response to questions about Activision 's approach to the Guitar Hero market , noted that Guitar Hero continues to outsell the Rock Band series in both number of sales and revenue , with consumers continuing to buy the separate games on the market , and considered the market acceptance of the multiple games as validation for their model . Regardless , after releasing 25 different SKUs ( between games and bundle packages ) in 2009 , Activision opted to reduce that number to 10 in 2010 , recognizing the music game genre was not as profitable as it once was . Activision later opted to put future development of the series on hold in early 2011 citing weak sales in the rhythm game genre , a move that many journalists attributed to Activision 's earlier oversaturation . 
 Activision Publishing chief executive Mike Griffith , in response to questions about Activision <a href='null_genetive' title='1'><mark>'s</mark></a>approach to the Guitar Hero market , noted that Guitar Hero <a href='uninflect' title='2'><mark>continues</mark></a> to outsell the Rock Band series in both number of sales and revenue , with consumers continuing to buy the separate games on the market , and considered the market acceptance of the multiple games as validation for their model . Regardless , after releasing 25 different SKUs ( between games and bundle packages ) in 2009 , Activision opted to reduce that number to 10 in 2010 , recognizing the music game genre <a href='negative_concord' title='3'><mark>was</mark></a> <a href='negative_concord' title='4'><mark>not</mark></a>as profitable as it once was . Activision later<a href='been_done' title='5'><mark></mark></a> opted to put future development of the series on hold in early 2011 citing weak sales in the rhythm game genre , a move that many journalists attributed to Activision <a href='null_genetive' title='6'><mark>'s</mark></a>earlier oversaturation . 
Activision Publishing chief executive Mike Griffith , in response to questions about Activision  approach to the Guitar Hero market , noted that Guitar Hero continue to outsell the Rock Band series in both number of sales and revenue , wid consumers continuing to buy da separate games on the market , and considered tdamarket acceptance of thdaultiple games as validation for their model . Regardless , after releasing 25 diff SKUs ( between games and bundle packages ) in 2009 , Activision opted to reduce that number to 10 in 2010 , recognizing thedasic game genre ain't as profitable as it once was . Activision later done opted to put future development of the daies on hold in early 2011 citing weak sales in the rdahm game genre , a move that many journalists attributed to Activision  earlier oversaturation .