Priority tags are as much use as teats on a bull. Especially if you check in early. Using miles is another matter. Mrs Radeng and I are going to Oz next month. 500,000 miles, a free upgrade for two and £480 for two First Class returns doesn't strike me as being too bad......150,000 miles and £220 for F class return to the US, including F on the internal flights on Amercian seemed OK, too.