Only one sample point, but I wanted to get some steem and zcash out of my local exchange, coinspot. But they don't allow you to withdraw those two currencies yet. So I had to convert them to a supported currency.
I could have converted them to Bitcoin to get them out, but litecoin was also supported and much cheaper, so I did that instead, then used shapeshift to get them back into their intended currencies and stored off the exchange.
After losing 4 Bitcoin to a rogue exchange a few years ago. I learned my lesson.
Anyway, one less transaction for Bitcoin because another currency did the job better and cheaper.