I was in Ainslie Bullion the other week, making a collection. As I walked in, a lady with a child was walking out (happened to be Asian) had a small luggage case on wheels and was struggling with it, must have been 10/15kg.
i thought to myself wow, she must have some serious value in there. Wish that was me lol.
Anyway, I was browsing again today, It appears Ainslie are running out of the really heavy stuff 1kg bars & coins etc.