i'd use the $100 knife LESS than the $10 counterpart -> that's why i use $1 knifes because i cannot care less if it breaks
even google doesn't use sun blades, that's pretty telling
about home ownership, there are correlations that countries that are low on home ownership level(e.g, swiss) is richer than ones with high level (e.g, spain)
those examples are correlation, not causality ... anomaly i'd say and it's worth practicing
The $100 knife is also usually quite indestructible compared with the $10 counterpart. Even a $100 knife in the poorest care is salvageable with a professional sharpening.
$10 knifes, you can afford to have spares
another example, i no longer use mechanical pencil because it betrayed me so many times (i can't see if there's extra lead inside)
transparent mech pencil is better, but i often forget to bring extra leads :(
that's why i buy 96 counts pencils for $5 ... the lead is visible, it never fails me
and no, i don't bring sharpener (you can always break the pencil and 'sharpen' the lead against rough surfaces)
i bring 5 sharpened pencils instead and put the rest in various places
although it's redundant (to ensure reliability), it's simpler and i'm much happier