Air Asia might be a budget airlines on paper. They have a "immoral" way of laundering money from helpless passengers! For example, my wife and my 1.5 year old baby were travelling along with a family friend. Guess, what they made my wife pay in order to get a seat together. When you need to breast feed the baby, you need someone you know beside you. Those immoral people de-allocated the default sequential seats allotted during booking time and asked for money at check in counter to be able to sit together. Be extremely careful of this airline. Maybe it will not be a problem if you are alone, but when it comes to families and elder-lies, they use this technique effectively to lure helpless people into purchasing. Nice business model, ain’t it? I suggest that you drag them to consumer court and make sure they pay for such immoral business model. I wonder who are the fools who design such business models.