Not exactly the most Tier Points, but nevertheless an interesting trip could be had to Hong Kong next July for £278 . Earning 115 Tier Points flying with Royal Jordanian. Starting in Madrid and finishing in Vienna, routed through Amman. Could be a fun trip, and is a great price. Unfortunately, not many Avios though. Quoted on Budgetair.co.uk
I'm tempted myself, but I already have a trip booked to Asia next year.