If I want to play a game that is in development and I know about it I will keep up to date the moment that I hear about it. I believe that more players than you think did just that. They knew what they were getting when they bought D3.
Just a small reminder: some people have a thing called "life", where we need to work, go out, talk to things called "people", etc.
So no, I saw on the web they were selling D3, so I bought it. Didn't read or see anything about it before. Never would have expected it to be a cheap WoW. Expected it to be Diablo. And make no mistake, most people who bought it are NOT "game consumers" like you, my friend.
Many of the players were used to a gaming environment where we had freedom, where we were not slaves to a laggy server or crappy nerfs. I didn't even know what a "nerf" was before playing D3 :P
So you think it took me 8 hours a day to keep up to date. Not at all, it only took me a few minutes. My daily thing to keep up to date on D3 was first visit diablofans.com. If there was any news there read it and watch any videos that they linked. The majority of the time spent there was probably at most (not including videos) about 30 minutes. Before the official website came out I would check mmochampion.com to see if they had anything new that was different than diablofans.com.
After the official site came out then I switched and went with only diablofans.com and the official website. I hardly ever spent more than an hour keeping up to date. And when it took more than an hour it was because I was watching videos or maybe watching a Blizzcon video. That gave me more than enough information on the game that I knew what I was getting into long before I purchased the game.
I did it because I know that like any other game in existence. No game is exactly like it was when it was first displayed to the public. I would not trust it to be a carbon copy of Diablo 2:LOD even if I did not keep up to date. Why you might ask, simple my dear Watson. Tyrael clued me in on it. When he said at the end of act 5 in D2 "This act will change your world forever -- with consequences even I cannot foresee. However, it is the only way to ensure mankind's survival."
Tyrael said it would be a world changing event, so classes would be way different than the classes we knew and grew to love. I knew that even the chance of the skill, attributes, skill trees if any would either be totally different or nonexistent. I expected something different, in fact totally different than what we knew in D2:LOD. D2 was nothing like Diablo the original. I know because I used a fireball swordsman for a warrior in that game. I had used gear to raise his magic beyond the cap of 50 in order to learn a decent level of fireball to pull it off. That was something that was fun to do.
Also do you have friends that also wanted to play D3 as well. Maybe ones that have a little more time than you do so they can keep you abreasted. Could you at least call your local game shop once in a while to learn what is new with D3 and what it would be like playing it.
Since there was no NDA with the beta did you have any friends in the beta that could've helped you keep up to date. Ignorance of a game that you want to play is no excuse in my book. You can find ways of keeping up to date. Ones that does not takes hours upon hours of time.
FYI at the time I was keeping up to date with D3 I was not the fastest reader in the world either. I only had a reading rate of about 150 words per minute. I did however raise it to somewhere around 350-400 words per minute with a book on speed reading.