TMobile has no deals for current customers

I've been with Tmobile for many years.  I was concerned when they switched to their "no-contract" policy because it meant that customers could no longer get free phones.  I suppose that would have been ok if they had reduced our monthly bill so that adding on a 24 month "payment plan" for  a new phone was the same net monthly amount, but it wasn't.  Instead, it has increased my phone bill significantly.  That was bad enough but now we don't get any breaks at all.  No free or reduced phones, no incentives to upgrade out phones, no deals whatsoever.  I currently have 4 phone lines and really wanted to use the buy one get one free to upgrade two of the phones.  Nope.  The deal was only valid if adding a new line.  I understand that this is a great advertising ploy to attract new customers but it doesn't help current customers.  With the outrageous cost of phones these days, it is near impossible for lower income families to upgrade their phones.  I for one, cant afford to upgrade more than one phone at a time because of the cost.  That means that I can't upgrade my phone for like 6-8 years (based on a 24 month payment plan per phone)!  Tmobile needs to take care of their current customers.  The Tmobile Tuesday freebees are nice but in the end, helping current customers stay current (without charging them top dollar) is more important if they want to retain them.