[throw384732]

I have friends from "poor" countries and they see paying full price like paying 20% on tips.

For some it's acceptable, and for others it's not.

[oblio]

If they're still poor, sure.

If they now make a decent developed country salary, haggling in a poor country over 0.0001% of your monthly salary is probably not an efficient use of their time, but old (irrational now) habits die hard.