I took the bait and "upgraded" to 300Mb Tier and "Flex TV". I don't use the flex box - just stream through my existing devices, but getting the box was necessary for the service tier. There's no monthly rental on the flex box, so that's fine, for now, and I'm liking the faster speed when I download big things. Had to upgrade my cablemodem (SB6121 out and SB6183 in) and replace an old switch to get the full benefits of the new service tier.
Kinda making me think about 10GBe for my NAS and main systems, now, though.