I bought a LK-120 lightup keyboard from Big W on clearance displey for $40 down from $98. There were 5 on shelf then and maybe more in storage(?). A collegue also saw them yesterday on a display table. Mine scanned for $98 and was adjusted to $40 at checkout. I cant find it on the Big W website so link is to casio site as a reference.
I am not opeing it until October as it is a birthday present but a sticker on it says includes 5 year warranty and also the optional AC adapter.
Paid $50 for a near new one before Xmas. Great value at $40 new.