Haggling a little is fine with me in general. This is a semi-fictional example of something that I don't know if I'd call haggling:
A: You're asking $150 but I only give $75 for them.
B: I can't find one that's sold anywhere for less than $200.
A: Well, I only give $75 for them. Buy them all the time.
B: Show me anywhere where it's sold for a lower price than I'm asking and I'll look at coming down.
A: I give $75 is what I always give for them.
B: No, thanks. Have a good day.
A: Haha. Okay then. $85. When can we meet?
A: You're asking $150 but I only give $75 for them.
B: I can't find one that's sold anywhere for less than $200.
A: Well, I only give $75 for them. Buy them all the time.
B: Show me anywhere where it's sold for a lower price than I'm asking and I'll look at coming down.
A: I give $75 is what I always give for them.
B: No, thanks. Have a good day.
A: Haha. Okay then. $85. When can we meet?