FlyerTalk caught notice that US Airways is now charging 3.5 cents per mile plus a 7.5% tax recovery fee. Previously, miles were 2.75 cents each plus tax.
This brings the minimum price of the grand slam hit (1k miles) up 81 cents; but more substantially, it raises the cost of buying miles under the 100% bonus promotion to get a business class trip to Europe from $1,478.13 to $1,881.25.