On a similar note, here's a technique I've heard described (although I haven't actually tried it).
Go in to a dealership, haggle a bit, and if you don't get the price you want, say "OK, I'm going to go out and do some more shopping... here's my card, give me a call if you change your mind". Apparently just the threat of walking away will sometimes prompt some movement, and if you do walk out, you'll sometimes get a call the next day with a better offer.
I think they key is that it's not a bluff; you actually have to be willing to get up, walk away, and go look at something else.
Go in to a dealership, haggle a bit, and if you don't get the price you want, say "OK, I'm going to go out and do some more shopping... here's my card, give me a call if you change your mind". Apparently just the threat of walking away will sometimes prompt some movement, and if you do walk out, you'll sometimes get a call the next day with a better offer.
I think they key is that it's not a bluff; you actually have to be willing to get up, walk away, and go look at something else.