I'm doing it for health reasons - fatty liver, insulin resistance etc were becoming issues. I have an electrical problem with my heart which was getting quite debilitating, although I partially solved this by stopping anti-allergy pills. But at one point it was thought I may have underlying heart disease. When that was ruled out, I wanted to keep my heart healthy. By then I'd already started to lose the weight with diet and light exercise but it meant i could then get into more vigorous training.
I also want to look good. Unlike some women who can carry a lot of extra weight and still look sexy and beautiful, I always look hideous with a puffy face. And my weight goes to my belly first, so I look like an old fat guy with a beer gut. More so because I have very narrow hips and solid legs. Very few clothes suit me, even at my slimmest, but when I'm fat, NOTHING looks good on me. It gets so that if I find something that looks good on me, I buy more than one.
I'm going overseas in six weeks and didn't want to look awful but that was a secondary goal because I'd already started losing the weight. It's just something to help keep me motivated.