Customer Loyalty Plan

I have been with T-Mobile since the first program called Digiph! That is around 25 years. I am a creature of comfort and I really liked the fact that I could get an upgrade every year at no cost due to my customer loyalty. That is no longer a thing unless you upgrade your plan and I would be paying $50 more a month for a plan I don't need. I have been looking into other networks and it seems that I can move to another company and get the upgraded I-phone 15 for free. I am thinking since T-Mobile does not recognize my 25 years of on-time payments in any way shape or form, perhaps I should change companies. Any thoughts?