There are some things which to me are just standards- mat, rotary cutter, 6x24 ruler, scissors, seam ripper, iron
If one breaks or wears out, I would have to buy another.
Other than my 6x24, I use the Tucker Trimmer ruler a lot. I would replace it.
I have this magnetic holder for pins which saves me time and blood ( I use it to find stray pins.) Prevents the poke and find method.
I have many other rulers and other gadgets, but I'm not sure I will replace them if they break or wear out.