When it comes to limited editions I grab them from arrow as I find there packing better than zavvi for sure, just sick fed up of everything you get from zavvi arriving in Jiffy bags and turning up a mess, after all these years they have been in business you think they would pack say a big order and send in a box for better protection. It's ok for you guys in uk to get replacements and do returns but harder overseas. Not only that the boxes they use which is very rare they must go to a recycling tip to send out stuff they are probably worse than the bags as very thin.
Amazon are a hit or miss sometimes being sent together and other times sent on its own with sometime damage, but Amazon don't send here now and but arrow does.
The only bugger is arrow shipping has increased so much and it can be for me half the price with zavvi who great still send here, but for limited edition zavvi is crap unless you don't mind condition it arrives. Steelbooks are fine with zavvi and your average blu ray.