Here is a reason you don’t want to place your data in the hands of another do you even own your own data anymore. If a company decides they don’t want you on their services anymore you loss “your” data, you loss “your” digital content, you loss “your” apps.
Another issue I covered is the cost, sure it only $5 to $15 a month, but that is a permanent cost, a monthly cost for ever. Sure it sounds cheaper but over the years it adds up, that $5 to $15 becomes, $60 to $180 a year. $600 to $1800 a decade.
This also feeds back to the physical vs digital debate, so easily, when you “buy” (lets call it what it is rent) a digital item you don’t own it and it can be taken away from you with out warning, yet they want to charge you the same amount as they do for physical. It use to be when you went down to block buster and rented a movie for a few nights, they did at lest charge you a fraction of what it would cost to buy it. Yet companies want you to rent content for the same price it costs to buy it.