Too expensive, too many risks, and too little sense. In the modern world, there are many hosting companies that you can contact and this way you will save money, but you should pay attention to reviews so that you do not have problems accessing files later.
If you build your own server, there are advantages to this because you control everything yourself, but you will need a special room, equipment, additional parts to replace equipment, uninterruptible power supply, two different Internet providers so that if something stops working for one, connect to the other. In general, this is too expensive and difficult, and therefore only large companies should have their own server, while it will be easier and more profitable for ordinary users and small companies to sign a contract with a hosting company.