Pfft, I hope these posts claiming the TF10's are far superior to the X10's are joking... The TF10's, IMO, weren't that great compared to, say, the EX600. Given, that assumption is from memory, but I can still recall the TF10's sound-signature clearly; over-extended highs and bass, drowning out the mids thus creating an extreme /\ shaped presentation. Good for electronic and rock, terrible for everything else.
If there are more people that want to sell their X10, I am interested to hear what they sound like haha.