Restless again

I tend to read a few blogs, and I especially like to keep up on personal finance blogs.  But yesterday, the wind was taken out of my sails when I read that one of the bloggers had paid off his mortgage in just 5 years.  The house was around $175,000.  In five years.  Today, I found out that another site had been sold back in 2009, and he had also paid off his mortgage.  This situation makes me feel many things, not the least of which are envious.  I want that!  But I also kinda feel like their sites may no longer work for me.  Someone who's paid off the mortgage doesn't have the same issues as I do, I think.  I could be wrong, but I need to think about it.