I've a couple of friends who were having this problem like you. There are ways to buy cheaper items which I'd help them to get what they need and spent lesser. The $400 price diff is just not worth it.
i didn't get it anyway. all i see useful there (when i bought mine) are the 2 memory cards, filter, dry cabinet, bag and the 50 1.8. now the filter just doesn't seems so attractive anymore. i completely stopped using mine since it causes glare with almost any light source. the headache is the dry box i have now. i just cooked it up yesterday and now it's wet again