Budget Travel - AirAsiaX Upgrades on Departure

Hi All

Just wondering if anyone has any experience with upgrades on departure with AirAsiaX. Trying to work out if they are worth doing and what sort of cost they would be.

Apologies if there is another post on this topic, i couldnt find one doing a search.

Thanks

It's $250 extra per person one way subject to availability.

Having now come back from my trip with AirAsiaX i have discovered that it is 300 MYR on the way from KUL to MEL (and indeed is 250 AUD on the way there). Dont know if anyone else was wanting to know that but thought i would post it just in case.