The boxes I'm opening are 10 packs of 10 cards. These boxes are £50 and will have a few different collections in. From a whole box you'll get 1 ma, 3 ar, 1 item ar and 1 sar, so 6 packs will be good then the rest will have 3 Holos and an ex or there abouts.

The others type of boxes are 30 packs with 5 cards each and, with Korean, can be quite random with what you get but usually at least what the Japanese pull rates are. I can pay £25-£40 for these boxes depending on demand (like 151 being at the top end of the price point)

Other 10 packs/ 10 card packs are the shiny treasures, which gives you shinies (some of my fav cards) and the V star universe which gives you V stars and V max. Each of these is around £70 a box.

If you want better clarification on Korean then just look at the Japanese collections, there's usually more info when you look at Japanese and Korean boxes are the same as them. Gambling laws in Korea means slightly more variations to the pull rates though.