It's on sale yet again!
It's possible these are "surplus" stock that carriers bought and want to unload. The 128GB were originally the only Cellular variant. It might explain why these models specifically are very frequently on sale on eBay.
I'm not sure we've seen any Apple product receive such steep percentage discounts off retail so soon, ever, have we?
We are just now coming up to it being out for 6 months - Amazing
Not sure what to think about that. Was it priced to high and now that the early adopters picked one up at premium pricing they are lowering the price for the masses? Or is it just an expensive niche product?