Usually people upgrade either when new designs come out or when the proper version of the new design (the "S" model) comes out.
It is wise for those who are happy with their 5S to wait until the 6S, when Apple will add the Sapphire screen, bump up the specs slightly, maybe add 4k video camera, assuming having the latest and greatest isn't a priority and the screen size is a non-factor.
However, if you are not keen on the design of the 6, then be prepared to wait 2 years to upgrade when the 7 comes out with an all new design...then hope it's one you like.
Not sure what the problem is with the design, it looks just about like every other iPhone with a little extra rounding on the edges (which makes it ok to hold without cutting yourself). The bands on the back aren't any more strange/weird looking than the bits of glass on the 5/5S models, IMO.
If it's the size that's the problem, then the 5S may be the last iPhone you own because I can 100% guarantee you that Apple isn't coming out with any phones under 4.7 inches ever again.
It is wise for those who are happy with their 5S to wait until the 6S, when Apple will add the Sapphire screen, bump up the specs slightly, maybe add 4k video camera, assuming having the latest and greatest isn't a priority and the screen size is a non-factor.
However, if you are not keen on the design of the 6, then be prepared to wait 2 years to upgrade when the 7 comes out with an all new design...then hope it's one you like.
Not sure what the problem is with the design, it looks just about like every other iPhone with a little extra rounding on the edges (which makes it ok to hold without cutting yourself). The bands on the back aren't any more strange/weird looking than the bits of glass on the 5/5S models, IMO.
If it's the size that's the problem, then the 5S may be the last iPhone you own because I can 100% guarantee you that Apple isn't coming out with any phones under 4.7 inches ever again.