I envy you, I would try to get them at that price. How does the XBA-2 sound to you? Does it make up for the lack of bass in the XBA-1?
By the way, do they have the XBA-10iP available already?

I think it's agreed that the so-called isolation tips are a pain to use. They feel stiff to me, and to achieve a good seal is like an unnecessary task. The hybrid tips are good enough most times, providing excellent isolation.

On another topic, from another thread I have sent my pair of XBA-1's for warranty. Do note that the whole XBA range is covered under Sony's warranty terms, and other earphones only covering for rm350 and above.