Its hard to answer your question, we pay up to 30,-€ / quart if you get you car serviced at the dealer under warranty or if you need to buy oil on gas station at mindnight. Some internet prices are lower, but the prices you have googled are the average ones, yes.
We dont have the feeling to get ripped off, becasue these are the average oil Prices here in germany.
A 5 liter jug of Mobil 1 0w-40 is up to 70,-€ here in DIY stores. Thats 83 US$ or 108 Canadian $. But nobody buy oil there...
Of course, some german internet stores have very competetive prices.
https://www.ato24.de/en/