Would it be worth the upgrade from Note II to Note IV ?I skip Note III though.

I like my Note II unfortunately perhaps the history of drops, and repairs, its now becoming a bit unstable. A bit of bending the unit will cause it to reboot.

Camera also dead had to replace with after market unit and now pic is not as sharp as before.

So I desperately need another unit of similar size. Xperia Z3 and Note IV is my target but I heard bad things about Xperia line.

I hope the price still same or less. How long it took for the Note II price start to drop a little anyway?

Worth to go for contract?

Currently I'm on celcom postpaid, which I started when I applied for the iphone 4s. Since then contract end.

So i was wondering if going for Note 4 + contract is worth it. 2 years is also ok for me since I'll be sticking for celcom for a long time.