What should I do?

Keep the 5S and use it.
It's a good phone, it's future proof, so you'll be good.

 

Get the cash for the iPhone 6.

Seriously, take my advice. You have earned my first reply in 2 years.

 

I would never get an Apple product within a month of its new successor.

 

I got my iPhone 2ish months before it's successors successor came out.
I sees where you're coming from, but the iPhone 5s is a very powerful device. It's chip hasn't even been used to its full potential.
Back to my original point, it is very future proof.

 

What should I do?

The iPhone 5S will probably be Apple's longest supported iPhone to date. You could easily stick with it for a few years without trouble.

 

The iPhone 5S is a great phone and will serve you very well. Not sure why you think the 6 won't be worthy based on the leaks though? It'll be an improvement on the current line up for sure.

 

If you can afford it, sell it and get the 6. If money is really tight, enjoy the 5S.

 

I would sell has a new 5s and not use it that way you get a top dollar for it towards the latest

 

The iphone 5s is a great phone as mentioned.

The vast majority on this board assume EVERYONE wants and needs the next new phone. Bad assumption.

Since NOBODY here knows exactly all the details on the 6, and NOBODY here knows your likes, wants and needs, NOBODY here can really advise you at this point.

Since you are getting the phone, you do not have a choice of waiting for the 6...other than keeping your newly "won" phone in NEW, NEVER USED condition which would be worth a few more bucks if you sell it.

 

All depends on your situation.. If it were me I'd keep it wrapped up until needed, if better than my current device I'd use it as long as possible. By then I'd be eligible for an upgrade naturally anyway

 

Ill make it easier for you. If you won an iPhone 4s, 9 days before the iPhone 5 announcement, what phone would you rather have? The iPhone 5 was a HUGE upgrade in every way compared to the iPhone 4s.

The iPhone 5s is a good phone, now. But a new revamped iPhone 6 is only 9 days away and will be better in speed, camera, signal, screen, etc. Also it will have something the iPhone 5s can't do. Also if you ever might of considered getting the iWatch, the iPhone 6 might get some exclusive features that work with it.

Now this is all speculation, but if true, will you have changed your mind?

You could list the iPhone as Brand New In Box for $600 BuyItNow on eBay and sell it in a few days. Then pay less then $100 for the iPhone 6.

SELL IT!!!

 

With how close we are to the 6, I would sell it. It's going to be even easier and closer considering you haven't even received the phone yet!!!

 

Exactly. Sale the 5s pay difference for new and improved 6.

 

It's all personal preference.
You shouldn't need a bunch of strangers to tell you what would work best for your needs and wants.

 

I would advice on selling it then using that cash for the new iPhone. However do bare in mind the following: getting a new iPhone is a thing of staying up late (2AM in many cases) to get in the size, color and network you want; otherwise, you'll be left with nothing but a back ordered phone which can take several days/weeks to get to you.

 

We can't because it isn't out yet. While bits and pieces are known, much of the iPhone 6 is not.