On UA's website, they're currently offering 17,500 miles for getting their Visa card (after making the first purchase.) I'm about to apply but want to make sure there are no better offers. Yes, I know 17,500 miles is a GREAT offer but I thought, not long ago, I heard about a 20,000 mile offer. Can anyone tell me if there's currently a 20,000 mile offer out there? I think I checked all the links in this thread but there's always a chance I overlooked it. Thanks!

Neal