Speak for yourself then, because that's not the case everywhere in the world and certainly not on every platform either.
For example, if I wanted to buy Xenoblade Chronicles for the Switch, the digital version costs R$250 here. Physical copy, the cheapest I found is at R$330. These prices are pretty much standard for nearly every Switch game. And yeah, the Switch tends to have higher prices because of it not being an official thing in these parts, but when looking at prices for just about every game at launch, the cheapest physical version you can find is the same price as the digital one, at best.
I think it was pretty obvious I was using UK prices when I used the £ symbol.
I know that prices are different in other regions, but that doesn't change the fact that digital games are a fair bit more expensive in the UK when really they should be cheaper, so they're a rip-off. That's always been the case and I'm not going to pretend it's not just because they might be priced fairly in another region.