Do you own any other Izotope products? If so, you will be eligible for a "Crossgrade" price, usually a significant bargain.
If you don't own any Izotope products, you can watch for a sale on RX11 Elements. I have seen "Elements" products offered for as little as $19USD. This will qualify you for "Crossgrade" and "Upgrade" discounts, the latter offering the steepest discount.
Another tip is to monitor some of the large plugin retailers for deals, often not available on Izotopes' site. My preferred is Plugin Boutique, but you can also have a look at Sweetwater, JRR Shop, etc.
I have been a RX Advanced user since V3 and have upgraded many times (currently on V10 Advanced, purchased as part of the "Everything Bundle" a year ago). Everything actually means everything in Advanced versions, current at that time. For that upgrade I paid less (I am also Canadian) than your quoted price for RX11 Standard.
Take advantage of the free trials and they will likely start feeding you coupons
. It will also allow you to become familiar with the interface and workflow, so you are ahead of the game when you get a chance to trade up.