My personal blog traffic has increased tremendously recently. The backlinks too have increased. However, I don't see any increase in PR ever. I suppose it won't be coming anytime soon. No matter how hard I work on my blog, the standards seem to get higher and higher.
How I wish I have visions like those futures broker to predict the future. But unfortunately, we never know what will happen until it hits us. This makes me unable to sell some of my domains because I do not want to undersell.