I'm not much of a haggler myself, but my other half makes it a sport
I'm okay with saying the price is way more than I would pay for it, but I'm not going to make a big deal out of a few dollars that is going into someone's pocket that needs to feed their family.
On the other hand, I don't like to be made to feel that I am being taken advantage of like when a cab driver tries to charge $10 a head for 8 people for a ride from the cliffs to the beach!