Did skyrim have a demo? I know there's not much of a story to spoil in that though
No it didn't have one.
Honestly I never bought DA2 BECAUSE I played the demo, and absolutely hated the combat, and art design, and remake of darkspawn and Flemeth, etc. Then player reviews came in and that nailed it. On the bright side it saved me $50.
Right now I REALLy want to try the combat in DA:I because that's really the only thing that concerns me. It's just too much of a magical maelstrom of effects even for just melee attacks and buffs. I can't tell what's going on and would like to try it to see how bad it is before buying. Also I can only imagine the drain on PC resources to have all that going on. So I'll wait a few weeks anyway to check out as many player vids before buying, if I do.