If you have done enough research and know exactly what you want, do not be swayed by the sales person on paying more than the least.
I thought I had the best deal on recommendation that this shop in AMK gave the best deal. It was a good price, better than that advertised. I thought my negotiation skill was good.
However, shortly after, I discover that there was another shop elswhere that offered the same deal at a cheaper price plus an additional free gift.
SLS is a good place? I think worse. What about Lucky P?