Yes, we (retirees) all knew this was coming, and IMHO most would be willing to pay a modest increase in TriCare enrollment fees each year. Unfortunately, that's not what they're proposing. Paying ~$800/yr is for a retired O-4 making just over $41k/yr retirement, and only for CY2013. By 2017 your enrollment fee has now tripled, and if you retire as an O-5 or higher it more than quadruples to over $2k. Now add in prescription copay increases (I spend over $1k/yr on prescriptions for my wife) over the same time period, and there's a substantial increase in out-of-pocket expenses. Still relatively cheap compared to the civilian world, but nowhere near the "free" health care we were "promised" in the 80s. Just a WAG, but I'm guessing those retirees in the lower tier on fixed incomes will probably begin going to the VA for more of their medical care as well, only increasing the costs associated with that program...
https://militarytimes.com/projects/benefits/tricare-fee-increases/