Depending on how it's done, it still is, and enterprise salesmen doing it doesn't make it less so. As a customer, I don't necessarily seek absolute minimum price, but I want it to be a fair price that I can agree on voluntarily - that means, I don't want to be subject of a bunch of manipulative sales techniques during pricing negotiations. Moreover, individual pricing used at scale makes it impossible to compare prices, or even develop a sense of what price is fair price. I actively prefer buying from vendors who list prices publicly, so by going the individual price route, you might be losing business of me and people like me.