I'm going to ask a strange question that I hope GAF can answer for me: Are there any "How to Play" guides / videos for these games? You see, I loved both D1 and D2 when they came out, but I don't think I actually every truly beat either of them. When I finally got a copy of D3 I think I only played for around 10 hours because at that point I felt like I just wasn't doing something right. I didn't fully understand multiple parts of the battle system (In particular, Tower Attacks, re-incarnation, and item leveling). I felt like I wasn't taking full advantage of those things and was suffering for it.
I really want to play D4 because I'm a sucker for turn-based-strategy (especially the grid variety) but I want to feel like I'm not doing things wrong. Does this game do a better job of teaching you not only how to use it's extra systems, but also why to use them? I'm thinking one of the reasons I never tried to do any of the Tower attacks, Reincarnation, or Item Leveling was because I never really understood why you would want to do them in the first place. For instance, why spend the hour it would take to level up and item when you will just buy a better one later? Why stack everyone in a Tower and take one turn, when you could have everyone take individual turns and kill faster? Why Reincarnate and cripple your character back at Level 1, only to have to babysit them to level them up again? Why have that monster combine with that character to make a weapon when you could have both characters attack separately and do more damage?
I'm sure that I am incredibly wrong in those assumptions and I want to be told the right way to play! Help me GAF!