Generally speaking, small cards are more expensive.

At least there is an official version of the photo card, which is very valuable in the eyes of star chasers, while the bonus card is unofficially printed and has an ordinary market value.

Be careful to distinguish between official cards and unofficial cards. Official cards are mainly given when you buy albums/DVDs/other official peripherals. What kind of peripherals will be given depends on the specific configuration. In addition, standing cards and postcards will also be given. Stickers, etc., if you give more, the average price of each gift will be cheaper, if you give less, the price will be more expensive.