don't pre-order games from ubisoft until their games are actually good. Last good imo they made was AC4, but haven't played FC4 so that might have been the last good one, since a lot of people loved it.
I mean.... There are tonnes of games that are better anything that Ubishit has made in the past 4 years (don't point out exceptions, I know R6). Have you played all of them? There are so many games that are coming out in the near future which I'm sure will be better then AC:O by light years
The only time a pre-order is worth it is if it come with something physical that you really want or it's a nintendo product cause you can flip that shit and make a killing.