Why is it so hard to find Shimano XTR SIS Shifter Cable Set? Is this item discontinued & become retro? Looks like i'll have to buy overseas for $40 including shipping which is pretty good, no? An Amazon seller has it for $88 sheesh!

Shimano XTR SIS Shift Gear Cable Set in Black | eBay image does not say XTR, what do you think?

Shimano XTR ATB Gear Cable Set | eBay image says XTR but also says ATB. Should be the same & okay for our MTB right?