When is the best time to buy civ 7?

To start, I do want to eventually buy all the dlc for civ 7. Right now I'm considering whether to buy the founder edition at launch, to just buy the base game, or to wait on buying anything until a sale(meh). Do civ games normally go on sale during the first couple of sale cycles? Or will I have to wait multiple years? An important note is that I am interested in playing multiplayer, and I assume that I will need all the dlc to do that. So I'm stuck between spending $130, waiting for the dlc but still buying the base game, and just waiting to buy the game entirely. Any help, comments on my stupidity, or knowledge of previous civ game sales on steam would be very helpful.