Once you start looking at MP copies, the price jumps to $486.21, while LP copies cap out at $500, but there aren't any NM sales to point to
Card Set(s) -ROMANCE DAWN- [OP01] CARD VIEW OP01-117 | C | EVENT Sheep's Horn Block icon 1 Type Animal Kingdom Pirates/SMILE Effect [Main] DON
Basically yes as long as you keep those fan-art rules in mind
Regardless, I dont know that now is the time for more than 60 cards, but I do know that as the card pool expands, it gets easier and easier to find more spells of a similar power level, but no other lands are close to the power level of fetchlands, so the incentives to build to maximize the power of our lands over the power of our spells do increase in some way over time, which is to say that, even if its not right now, it could be someday, and getting there first might be the best way to truly break Modern.
Think about your hand when looking at abilities : If youre putting a card in your inkwell and playing a character on every turn, but you are only drawing one card (by default) every turn then youll run out of cards very quickly