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1- Cost - pay for what you get, not pay for what you don't get.
2- Quality of the service.
3- More options to choose from.
i worked as a customer service b4 at a mobile company and many of the customers dont care about the price as much as they want a free offers, a perfect signal every where and the less money cost
1- Speed of Service
2- Quality of Service
3- Cost of Service
Reliability,
Speed,
Cost.