Why Do You Need More Than 6GB of Memory?

Kyle has started a discussion today about the benefits of running more than 6GB of memory. Currently Kyle is running Windows 7 and one of the points he made in this thread is how having more than 6GB of memory makes it possible to run upwards of 15 applications at a time, even when performing memory intensive tasks like encoding a Premiere Pro movie sequence. Who needs the Quick Launch bar in Windows 7 when you are running 12GB of RAM? Have an opinion? Let’s hear it! Those of you that thought 12GB was overkill are welcome to chime in as well.