Agree with Dvicious. If you're ready to move to the next age, it might be a good idea to move up, and get the troop upgrades that cost food out of the way in the meantime. If you do that, you will be better prepared to take advantage of the oil based upgrades during such a rush event. Not a bad idea at all!
If you're pretty much maxed out with the current age already, this move will also allow you to take advantage of the weekly discounts better too - the next age will unlock a whole lot of upgrades that you can take advantage of in the meantime.