If it is convenient (easy to use, easy to maintain, very fuss-free) and efficient then the high price tag can be justified.

It depends on what function the product is for. If It is for some thing I hate to do, I would spend more

This is a weird question with no description of functional home product and what kind of load?

If it is a home product that will be used frequently, I will spend more money on it

It really depends on the product but if it can ease our load greatly I don’t mind

also depends on how much $ value help/savings e product can provide...

depends, definitely willing to spend more for certain items

It really depends on what’s the function paid for...

I am thinking of a washing machine for 10kg load...

It really depends on the product in consideration.