Isn't paying no money easier than paying money? If someone gave you an option to pay money or not pay money with no penalty, you wouldn't take the latter?
It has nothing to do with what you can and can't afford, and everything to do with being financially smart. Why tie up income if you don't have to? You can keep that money and invest it elsewhere to make it work for you.
I appreciate someone answering my question "why people are claiming it's easier to sign up for T-Mobile now that there is no downpayment". You still have to give them the credit card (or whatever means your paying with) to set up the account. The only difference is that they don't collect the down payment. As far as I can determine, the only way it would be easier is if you can't afford the down payment in which case a person really shouldn't be getting a smart phone in the first place.
I can see where it might be more desirable now to sign up for T-Mobile without a down payment but I still can't see why it's easier.