When someone doesn't know the basis of "getting a good deal", and will take someone else's offer over yours when they're spending more TC with them.
GG
Buy low, sell high.
I recommend to buy most-wanted and foremost items like joints, texture and 3d items/hair.
But personally i don't recommend 3d items/hair coz they're barely sell and their prices were unexpectedly fluctuate in any occasion.