For me, being in debt was like slowly watching someone take over my life. I've never had a mortgage, just student debt and credit card debt, so I never see debt as "good".
For years I'd be paying off bits of my credit card debt, but due to my poor spending habits I'd get a statement that was a little higher than the previous month. It was always in the back of my mind.
The day I paid my student debt off, I felt so good I promised myself I'd do the same to my credit card debt. And last month I finally paid off the full amount on my credit card for the first time in nearly a decade. It was like I had removed a mean master from my life, someone trying to hold me back. This week will be the second monthly payment I get that feeling again!