$3/ month isn't that bad. And you really only need it if you want to use homebrew.
It's not the same product being released twice. The extra functionality and usefulness might not be of interest to everyone, but they are in no way the same product twice.
So what new content does this "new" product have?
Oh yeah to bad. Maybe if there was some kind of automatic machine that could take numbers and compute and such. Too bad really.
You seem convinced WotC has a computer which can scan digital images and determine if two different pictures of the same book with the same cover are in fact two separate copies which belong the sender of said picture.
Rather than a bunch of prose text on a page, I have all the information contained in that text parsed into usable data in a set of online tools. As anyone who tried to do that knows, that is a massive, time consuming task that adds a lot of value to it. It might not be useful to everyone, but to a lot of us that is extremely useful.
What kind of monster builder capability will D&D Beyond contain?
I guess it is a difficult distinction to draw between people asking for new content and new products that are serving up the same old content that we have already gotten.
To continue your steak analogy, it is like asking for Chicken and then the chef cooking up beef steak a different way. I am sure it is great beef steak but not what I ordered.
No it is not a difficult distinction. Getting new books and getting the same content in different usable forms are, of course, not the same thing.
But a physical book on my shelf and the data in an online tool are also, of course, not the same thing.
Defcon 1's point (I think it was them) was that knowing human nature, it's interesting to notice fans saying they want to give WotC more money to support D&D, but then saying "Oh no, but not like THAT." Of course you can ask for more books but not be interested in D&D Beyond. Yes, I agree with you that those aren't mutually exclusive ideas. I took Defcon 1's point as a general comment "Huh, people can be funny sometimes." not "You bunch of hypocrites!"
However, the flip side you replied with went too far the other way claiming that D&D Beyond is just buying the same book again. The physical book on your shelf and the data in an online tool are very different things, not the same book twice. Maybe the data in the online tool isn't worth anymore to you than the book on your shelf. That doesn't make it the same thing. No added value to ME is a very different thing from no added value at all.
(It's a point a lot of people seem to be missing an awful lot. I think it was over on the DDB forums that someone said they "can put a music CD in their computer and get all of the songs in iTunes. What's the difference here?" To which someone replied "Ok, shove your Players Handbook into your computer and see if a tool like DDB comes out.")