Does it mean I am really good with batteries if after two years is at 1280?
Anyways, I would like to try it but I would loose some important data (messages, apps data and stuff) and I can't really do it! Would iOS 8 help with the app monitoring feature? I could wait!
If you back up to iCloud first, you won't lose anything *providing you have sufficient storage space. However, it is recommended that you start afresh if experiencing problems with battery life.
As for iOS8, I have no idea.
I did all sorts of tinkering and my battery is still nothing like it used to be with iOS6, so you could be wasting your time.
Yes, your battery is in great health after two years. How many load cycles? Mine has 536, I'm a heavy user!