Will it better if I reidentify items?

Will I get better result of identification? Or just random?
If not, why it becomes more expensive?

 

it's totally random; the rolls are entirely independent of how many times the item has been identified

the reason the price increases every time is so you can't roll the same item over and over until you get the best roll possible

 

It does not count on how many times you rolled, but the above guy is right it is random.

 

Statistically, if you roll bad ones you should get better ones most of the time, but even then it's hard to say if you really get value from it. If you roll something that had 3% spell damage out of a range of 2% to 12%, would it be worth it if it went up to 5%?

 

I wouldn't recommend re-identifying unless the item had a terrible roll because it's expensive

 

It's all relative. I have gotten drops of things that are multiple le on the market for good rolls and taken the chance. In the long run, I think I have come out ahead. But it's a good idea to check tm before doing it. This is more true in higher levels; it's not until ~90+ that you start seeing good rolls run items into 5 and 6 figures on tm. Earlier for accessories.