Does the In-App purchase items on the app page of iTunes store are sorted based on the best purchase? [on hold]

I’ve been in doubt on the ordering of the In-app purchase items on the iTunes app page which appears to be little doubtful to me.

I made a purchase in a game which appears to be very useful to me. But, that item is not on the list and some other items are on top. Does this mean, I would be benefited more if I purchase the top most one?

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