High bandwidth costs also make it more costly to move some of the data processing to companies which offer very cheap dedicated servers.
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But it's not fair to say that price from Google is high just because some random hosting company gives you unmetered 500mbs for $99/month. As we have seen with many unlimited cloud storage offerings, some companies do unsustainable offers to attract customers. There are different strategies behind this. Some just count on that majority of customers won't use everything they could. Others know the price hike is inevitable, but believe customers will still stuck.
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But it's not fair to say that price from Google is high just because some random hosting company gives you unmetered 500mbs for $99/month. As we have seen with many unlimited cloud storage offerings, some companies do unsustainable offers to attract customers. There are different strategies behind this. Some just count on that majority of customers won't use everything they could. Others know the price hike is inevitable, but believe customers will still stuck.