Is it worth it to upgrade from my CyberAcoustics 2.1 speaker system
(https
/www.amazon.com/Cyber-Acoustics-Subwoofer-Delivering-CA-3080/dp/B00005BC0J)
to this Logitech Z506 system while it's on sale?
(https
/www.amazon.com/Logitech-Surround-Sound-Speakers-Z506/dp/B003VAK1FA/ref=pd_sim_sbs_147_10?ie=UTF8&dpID=416yDivaCbL&dpSrc=sims&preST=_AC_UL160_SR146%2C160_&refRID=0S3MQCK98D8X2F59HJC3&tag=wpcentralb-20&ascsubtag=UUwpUdUnU39790)
(https

to this Logitech Z506 system while it's on sale?
(https
