A friend of mine lived with his family overseas for a few years while on contract, in a country where haggling is the norm. When they were returning to Canada, his wife put their furniture and household items up for sale, as it wouldn't be practical to ship them home. She set what she believed to be a fair price on them, but it must have been one of those cultural clashes because she became so annoyed with everyone trying to haggle her down that she ended up giving everything away to charity, and throwing out what she couldn't! I can relate to that.
Haggling or negotiating suggests that either the price is set too high or the goods aren't worth what they're being represented as -- and to me, culturally, that seems like a bad foot to get off on in an intimate relationship.
Bartering never seemed right to me either. It seems like, with bartering, each side is hoping to get a greater value than they would have gotten in a normal cash transaction -- and in some cases, maybe it just happens to work out to a win/win perception. But more often than not, I suspect one or both sides end up feeling screwed.
..c..