Something else worth mentioning is that the big prizes are sometimes less than amazing. Some sheets will have 5k/10k gold or level 20 manyu as a big prize while also having ampies as a medium prize, so making use of the cheat sheets comes in handy.
Exactly
I always go for the ampies first, but they appear less valuable than dragons or manyus...
What? The lightbulb refers to the rarest items. It should be obvious with the bonus sheets. The event girl and equipment being lesser rewards is the oddity.