Maybe you could add like umm....hrm.. hard to say
but like packs that cost 5k-100k that when you open give you items no qi and qi....

i think its a little but good idea

5k- 1 rare item
7.5k- 3 rare items
25k-7 rare items
50k-10 rare items
100k - all rare

5k-12 items
7.5k-12 items
25k-12 items
50k- 20 items
100k 34 items