Anyone in the know about potential airfares for May (in our case, SFO to MAD)? I just found out that we can use frequent flyer miles, that there are seats available. But at 50,000 miles each, we must decide which is "cheaper?" (Anyway, who would have guessed at this late date that we could get FF seats? We checked months ago and nothing was available.) So, if anyone has an idea where fares are headed....? We are now looking at upper $700s or $800 each to fly with our favorite airline. At his price, using FF miles makes sense. Thanks! --CC