On the original topic, you must ask yourself this question with every service you subscribe to, in any industry.
Let's look at an example:
Cellphones:
One company seems expensive, but another is pretty cheap. So, since you're looking to save some money, you go with the cheaper company. While in the store, you test the phone by making a call, etc, and the call goes through great, etc. So you buy, and enter into a 1 year contract.
You leave the store, happy with your purchase, and happy with yourself for saving money. So now, while in your car, you decide to call your friend up, and tell him all about your new phone, only to find that in the parking lot of the store, you have no reception. You strike it up to location, and decide to wait until you're out of the parking lot. You get a little way down the road, and try the call again to find you still have no reception. In fact, you're starting to think that the only place you had reception was within the store itself.
You turn your car around and head back to the store to complain, and they tell you..."Yes, we are on a brand new network, and there are still a lot of areas where we do not have coverage." They hand you a coverage map, which has one little red dot on it, which appears to be the location of the store itself. So, you immediately ask to cancel your service. They reply with "No problem. There will be a $250 early contract cancellation fee."
This is the typical scenerio when choosing cheap over service.