600 ex-rt - should I upgrade?

Hi - I have 580exii and I have an offer to upgrade to 600ex-rt for 100 $.

1. From financial point - is this wort it?
2. Given my gear - would it help or make no difference?
Please note - I am not a pro and just take pictures of kids at home and outside in parks etc and I have had my flash for about 3 years so I don't know how much life is left in it.
Thanks..

No. Save your money.

If you are getting one, then no. If you are getting several to do OCF, then yes.

thanks guys - well I am only getting one right now. Years down the road if I come across another flash then yes but chances are no.

I am just tempted due to the 100 $ difference. My thinking is that 2-3 years down the road I will have easier time upgrading if I have 600.

The only thing you would be gaining is a hedge against obsolescence. You wouldnt be gaining any capacity that would benefit you until you get more gear.

its good to see for a change that not everybody here is enabler....

I just keep thinking that my 580ii could sell for 400 and this guy is offering me for 485 total...thats about 100 $ difference....would my 580ii be worth as much in 1 year?

There is no doubt that the 600 will bring more money than a 580 if you sell it. What I would encourage you to purchase with that $100 is modifiers for your 580, or even the stuff needed to move the flash off camera. In other words something to expand your ability and keep you learning.

For $100 dollars difference I would tell someone to go with the 600 if you are buying brand new. Canon does not offer them anymore but you can still get them. In your case I would do it simply because of what cking2 said.

Just don't get the RT bug I just wanted to replace one flash I sold so I decided to go with the 600. Two months later there is a second 600 and the ST-E3-RT in my house. More to come

600 well worth the upgrade. I love both of mine and the STE3

i just got one for free with my new 1DX. Just waiting for it to be delivered.