Opinions on click levels

[Hall of Famer]

I think this completely depends on the popularity of your sites? On Pokemansion, it takes 10 clicks to hatch but 90 clicks to reach lv.20. To achieve ultimate goal of a lv.100 pokemon, your adoptable must receive at least 2000 clicks. It becomes increasingly to level up once your pet is at higher level. I'd advise you to make good use of the level system, since it technically has no limit.