I would appreciate some advice from the experts on this forum. My 9-year-old had a relatively modest 20,509 miles in her account that I inadvertently let expire on April 1. We have no immediate plans to book award travel, but probably we will be making some trips within North America and could book a single one-way with these miles. Is it worth paying $175 to reinstate them for later use? If so, should I wait until we actually need to redeem the miles within the 18 month grace period, or should I reinstate now in case the price goes up later? Thank you.