Is the upgrade worth the money?

I'm an apple guy (haters may now leave)
I currently have an iPod touch 4G 32 gb and an iPhone 4S 16 gb
I like my music and I like my photos
The 4s has the better camera so I use that for photos even tho it takes up, and I have all my my more sophisticated apps on my iPhone because the iPod 4G is to laggy now. All my iPhone space is used up, so I use my iPod for music which takes up about half of the iPod.
With this My goal is to have Everything on one device so I'm looking at an iPhone 5S
Talked with AT&T and everything an the best they can do is with a nice case and selling my old phone (4S) it would be about $500
I'm like great that's a lot of money I'll just get a new iPod
Well it's only a hundred dollars cheaper and the 5S has a lot more upgrades
Should I spend the money on the 5S for the upgrade and one device or stick with two devices for $100 cheaper?
I would love to hear your opinions

Carrying two devices has always been a pain for me.

Started off with an iPod and a cell phone. Always found it a hassle to have to keep two devices.

Depending on the sort of usage you're looking at. You have to consider if your iPod touch usage will be high enough that if you end up having only one device, will the battery last?

Personally, I would recommend sticking to one device. It makes it easier to manage.

  • Is the lifeproof case worth the money? I just got an iPhone 4 and wanted to know if an lifeproof case really durable. I don't plan on submerging my phone in water. I just want a case that would be able to take a drop every once and a while and an accidental drop in water or something. I'm really good with phones and have never broke one or anything. But since this phone would be so expensive to replace I just want assurance that it is in a good case.
  • Is the iPhone 5 worth the money? - 1 Or is it just hype? I understand I'll get some very opposite answers on this but please back them up with bullit points and facts, not hate or fanboy redderic cause that's what fools do.
  • Is the iPhone 4 worth all the money? I want an iPhone 4 soon now that I have some cash available but I'm not waiting for the iPhone 5. And I don't want 4s. Just plain 4. But each month has a large payment and I'm paying from my own pocket. (I'm 16) So is it worth it or should I stick with my decent phone (not a smartphone) and get a Macbook Air? Haha
  • Is tbere any major différence between thé iPhone 6 and the 6s? Whooppeee is Xmas again and my daughter wants new 2nd hand) iPhone… 2 years ago almost bought her 5 before i réaliséd that it was 5s she wanted ( cos thé 5 sucks?) And I don't want to screw up this year…