False dichotomy. The only reason your own can go black is some hw/sw failure, a risk which anyone can minimise easily by having copies. Your access of a remote corporate server can go away for 1000 reasons, making you more vulnerable.
Of course it's more complex, like how often that data changes and costs of backups vs subscription price. But I find any argument for cloud products etching towards a "you'll own nothing and be happy" economy.
