Hmm, you're right, I never knew that. I always assumed it was peaked as in "Their level of interest reached its peak or highest level". It just made sense that way in my head.

The verb pique means to make someone angry or annoyed. But when something piques your interest or curiosity, here the verb pique just means to arouse, stimulate, or excite.

Anyways, it's just pure speculation. I am sure the interest is there if the price is right. More planes are coming but we just don't know when, how many or what kind...