Give the little lady a little credit.
I would agree, but the whole home theater upgrading process only goes through if I can make it idiot-proof for my wife.
I recently posted this in response to another's query on the importance of HDMI in a receiver. The answer is so similar to what I would say to you, I took the lazy way out and simply copied and pasted it.
I'm of the school that routes all video sources directly to the monitor and uses that for video selection. Along with that, I also route the primitive red/white analog outputs from the sources to thecorrosponding input on the TV.
Also, I run the "better" audio (digital coax, toslink) directly to the receiver and use that for audio selection/switching.
This allows me to select a source via the TV, watch the source on the TV, have rudimentary audio through it's internal speakers and not even turn on the receiver. I don't need a cooking show, the grandkids purple dinodsaur/Bob the Builder videos, or the daily news in 5.1 surround. Those little speakers are fine for that.
But, when I want the big sound, I turn the volume down on the TV, turn on the Denon, select the source, and blast away. All is right with the world.
Heck, many times I have the kids sitting (duct-taped together) watching a video and I'll be sitting in the LazyBoy listening to a CD with my headphones on. Who says I'm not a good Grandpa?
So, if you intend to route everything through the receiver, then HDMI becomes important. As it is, for myself, I don't find it really necessary at this time.