Sorry but that weird sense of entitlement of yours just sounds silly to me.
Is there a reason for you to be that aggressive? I don't see any "entitlement" since i was making a suggestion. Seriously, you need to calm down a bit.
From Bethesda's and Obsidian's point of view it would have been better if you had bought the game on release or pre-ordered. So if anything they would withhold content.
Well, there are lots of things that a company might wish for. Obsidian and all the other developers know very well that there are lots of people who will not buy their products from day one. In fact, in most cases, the vast majority of people won't. Especially for a game which is guaranteed to have lots of DLC in the future. It's not like you can force people to buy stuff, you have to give them tasty offers. Real basic stuff, i would say.
Why should you be rewarded for not buying the game? Keep the GOTY the way has been basically people who don't have the internet or would like to get all the DLCs for a good price. That's your reward for waiting.
There's a flaw in your line of thought. Not buying the game on day one doesn't equal not buying the game at all. Games have a rather short life cicle. GOTY editions offer a way to sell considerable amounts of units even after public interest may have waned. The "reward" is basically the same thing as "special edition extras". They are there to arouse interest and positive feedback. Besides, most GOTY editions don't have that "good price" argument going for them. Many people don't buy them because they are cheaper, but rather because they don't like digital distributions like DLC. It's that simple.