I once gave it up for 3 1/2 years. I had been dancing for about 1 1/2 years and then I moved cross-country from New York to California. In the course of getting settled, getting into my job, then deciding to get married and planning the wedding, then changing jobs a couple of times, I just never got back to it for 3 1/2 years. Truth is that I was so busy that I just didn't have time, coupled with the fact that dancing is expensive and I was spending my money on other things.
But, after a while, my life settled down and I found myself at a studio at a friend's party. The moment I walked into the studio I asked myself, "why the heck aren't I dancing?" So, the next day I called the studio and started lessons again. That was over 5 1/2 years ago.