Because I don't think pure socialism will work. Look at it this way: capitalism == individualism, socialism == community-ism. We are neither 100% nor 0% community-driven. If we removed capitalism, we would have to replace it, of course. The only thing I know of to replace it would be a society in which no one owns anything. I think that would quickly lead to nobody doing much of anything. Why work, when you get what you need anyway? With the system I would promote, you would get only the basic needs supplied to you. If you want more than that (most of us do) then you need to go work for it. The situation in America is very strongly tilted toward individualism, and I think we need to shift back the other way. So what I'm saying is, we should work for wages as now, but change the taxation system to a progressive one with no loopholes(!) and reform the way we care for the less fortunate. Primarily there are three things that I would like to see happen in the U.S. economically:

1. A fair taxation system
2. Universal Healthcare
3. Laws to prevent exploitation

That would be a start anyway. There are lots of other things I would like to reform that don't necessarily involve much change in the way money works.