So your dilemma seems to be you basically have 4 rooms of TV and you're looking at a lot of equipment so costs are high.
We have a couple of rooms where the TV is IP enabled. We also use Apple TV too. I no longer use any controller in those rooms, since there are no physical connection (we've never used the onscreen menu either). So in your case....maybe look at what you really need to control everything. I assume the above isn't the list for the entire project, but a price list??? If it's the list to upgrade, get a better dealer who wants to understand and help.
PS....I basically have 1xEA3 and 2xEA1 to control 30 lights, alarm, whole home audio, and 5 TV's (one is a home theater). one of the EA1s is used to extend the zigbee to my pool house, could have used a CA1, but spent a bit more for possible future needs...... My original system was an 1000/800 3xHC300, 2xHC250s....so I've upgraded and scaled back a bit after thinking about things more carefully and moving to IP based devices (TVs). This is a 10+ yo system....