The more up-to-date the information, the more valuable it is.
This is particularly true in the world of finance; information, and timing of that information, is money.

Today, real time quotes are not always freely and easily available on the web. Some websites offer one real-time quote at a time, but typically only after you have enrolled in a service and/or signed a complicated legal agreement.

Other sites approach the problem differently and show you streaming delayed data, but that doesn't solve the problem either - it masks it. What's really important is getting easy and fast access to real time quotes so you know how the market or your company is doing now, not as of twenty minutes ago.