Nexus phones were cheap compared to iPhone, that was their whole differentiation. For example, Nexus 5 launched at $349 while at the same time iPhone 5 launched at $649. There's nothing comparable in those prices.
If you really did buy all of these, then you certainly didn't pay the same price. And after that, there was 3 years break before first Pixel - so you used a bricked phone for 3 years? Or it worked fine for 3 years?
Unless they stated otherwise elsewhere, why are you assuming they went from the Nexus 5 straight to the Pixel? There’s also the Nexus 6 (2014) and 5X/6P (2015) before the Pixel (2016).
If you really did buy all of these, then you certainly didn't pay the same price. And after that, there was 3 years break before first Pixel - so you used a bricked phone for 3 years? Or it worked fine for 3 years?