collecting Arc one time isn't hard
so I am against this idea
Collecting arc one time isn´t hard.
But you have to collect plants, goods and PFs to have him occupy space in your city. Its something to be considered.
nevertheless
A regular LVL 10 ARC give 110 goods (22*5). You need 7 days of collections to accomplish JUST ONE mission of the event (taking as example the mission 23 of the halloween event - 700 goods)
This is half the time available to fulfill the entire event.