I have savings and investments I could tap. With the only debt being the mortgage, that's an easy payoff. I also have short term disability coverage, long term disability coverage, life insurance, etc.

One way is not better than the other. They are just different. Now, using debt to live above your means is a totally different story. That's never a good idea. I am curious to know one thing...if I can finance something for 0%, and I have the cash to buy it, what is the downside to financing it at 0% and letting the cash earn investment income?