You are no doubt right. I can't believe Klipsch isn't behind this to create some "buzz," but who knows. I do know that if you check the X10 "cheap" thread, the longer one, Amy (Klipsch rep) said they were not available on Amazon at the $211 price from Amazon, but she turned out to be mistaken. Then, she said they would not be at that price much longer. Guess she was right.
As you say, there are plenty of non-authorized sellers out there around $200, but both Amazon and Soundearphones have bumped the price back to $349.
I am still checking out the X10s against the SA6s, and it's pretty close. As others have mentioned, the sleeves make a difference. Right now, I am using the large Image gels with the Sleeks and the mediums with the X10s. Using the same DAP, song, etc., no amp, they are close, but different. I like them both for different reasons. And at $191, I am keeping the X10s, because I can always sell them later if it turns out I am not using them much.
I can say this much about price. I would not keep theX10s at MSRP. Not worth $350 in my view. Then again, I have not ventured into the TF10 or SE530 price world for the same reason, content with the Sleeks and now, the X10s (at the Amazon price).
That being said, I could not recommend the X10s for $350, so if Klipsch was trying to create a buzz, consider that a buzzkill. The 179-$211 is just about right to me.