Pre-orders come with free Pixel Buds ($99), which if you care, is a nice bonus.
With all the supply chain issues this past year, you might not even be able to buy one come Black Friday, much less at a discount or with a better freebie.
In Germany (and some other EU countries) pre-orders come with Bose Noise Cancelling Headphones 700 (A ~270 EUR value). Here in Canada not only is the phone more expensive, it also "only" comes with Pixel Buds which are a ~CAD 160 value after tax. The Bose headphones are also more expensive in Canada (as pretty much anything except gas and electricity) so they'd be an even better value here.
So I'll investigate if there are significant (to me) differences between the EU and Canada models and may just order it in Germany then.