Thanks AsiaBiz/Traveller for your extensive input to this topic and indeed, many others over the years. Always a pleasure to scan the majority of comments on this site from frequent flyers who have loads of experience to share, dating back many decades. 

Thanks David for a good article and Frank and wamula for their contribution of additional handy tips.

A point not to be overlooked. Depending on where you live, to and from Sydney airport, the Emirates Chauffeur service is an equivalent benefit of some $250-$400. Deduct that from your Business Class cash purchase of $1840 ($920 x 2) or $3200 return First Class and you'll see an offset in you...

Amazing. This has to be one of the most - almost instantaneous - responses (69) I've seen to any article published by ET.Simply amazing

Boeing-Tragic, it is indeed a serious problem you have there... choose your sandwiches carefully!