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A Possible Cause of AT&T's Wireless Clog — Configuration Errors
AT&T customers (iPhone users notably among them) have seen some wireless congestion in recent months; Brough Turner thinks the trouble might be self-inflicted. According to Turner, the poor throughput and connection errors can be chalked up to "configuration errors specifically, congestion collapse induced by misconfigured buffers in their mobile core network." His explanation makes an interesting read.
They keep cost and quality low because that is what their customers actually want, or at least, that is what they are willing to pay for.
[CITATION NEEDED] You'd have an argument if AT&T was the lowest cost provider, but they aren't. MetroPCS is. Also this doesn't make sense from a market perspective either. You have the leading smart device on arguably the worst national network, yet AT&T continues to get subscribers almost exclusively due to iPhone sells. This makes a scarce resource -- AT&T's network -- even more scarce. Supply and Demand tells us that customers would be willing to pay more to access that network, especially given that demand isn't just steady, but steadily growing.
To quote Red from Shawshank Redemption, "I do believe you're talking out your ass."