[MCA]

You item 3 has several very different things.

Quote: Never ask about the price of a koi in others' presence.

agreed

Quote: When the dealer mentions a price, don't share it with others.

agreed

Quote: Never attempt to bargain with the dealer. If you agree with the price then that's good. However, if you feel that the price is too high, simply thank him/her and ask if you can see other koi.

disagree.....but....how you negociate with the dealer has much to do with your relationship with the person. The more longer you have known each other...and the more previous business you have done with the dealer....the more you two can discuss the price. This is especially true if you are purchasing more than one piece.