browsing at mudah, there indeed are many items with good price that i find it's a bit too good to be true. one common point is these sellers none are from klang valley or even neighbor state. it gotta be terengganu, kelantan, perlis, kedah...
you can still see these post as of today:
a mint sub 116600LV for less than 13.7k
a 10 months old SD for 13.5k
a mint 16600 for 11.7k
a mint 116600 for 12.3k - i tried to contact the seller to offer for cod in KL, but he/she ask me to meet at Kelantan. i did not pursue further.