Originally Posted by
IncyWincy
Option 1 is better IMHO as you spend 75,000 fewer miles while only spending HKD 12,000 or so more. The miles are more than enough to generate another companion ticket. Also, the miles you collect are a bit more.
An even bigger advantage is that you need only have to wait for one J seat to clear and not two in the case of Option 3. Plus waiting for companion award is supposedly the easiest.
yea, the above comments are on the right track to making the analysis correct.
i don't have the time right now to do the math but to the OP I don't think the analysis done so far up the thread is completely correct, apologies. to make the analysis a bit more more thorough you probably need to calculate how much you're "selling" your miles to CX for, as well as how many net miles you're burning/accumulating (because you'll earn miles in varying amounts with each of the different) and then compare that to both a.) the cash component and b.)what price you can "purchase" miles for. because ultimately you're going to have two "Costs": cash and miles. So you need some way to identify what is a good "price" you're paying for the net burn or earn in miles.