I know that some wants to see another turn-based game like Fallout, or Arcanum or or Temple of Elemental Evil. However, I do feel that there is a real fear at Bioware to go the way of the dodo, top become extinct at some point. I also think this was one of the main reasons to sell(out) to EA, to secure fundings for their new projects. To simply keep the business running and not be forced to close doors.
As for the differences in opinion about DA2, I think this comes down to what you value in a game. I, for instance, value characters, dialogue, story, as well as character interaction, interesting quests. Others might value gameplay and (turned-based) combat.
I think the split in opinions about DA comes from this.
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Some you us (I do sometimes, too) yearn and long for the glorious old days of computer games (in the 1990's) were we geeks and nerds could have our little hobby to ourselves. However, it is not 1997 or 1998 anymore. It is 2011, and gaming has become mainstream (even my sister plays Guitar Hero
). To succeed in this day and age, even the smallest indie games need to appeal to at least a large portion of the mainstream market. Just look at Radon Labs, now somewhat defunct, and bought out. Their game, Drakensang did cost about 2½ million Euros to make. How much of this did they get back - and how many gamers bought Drakensang 2?
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The point of this is that in order to survive in todays market, you'll need to find a way to ease casual gamers or mainstream gamers into the gameplay and the story...