Not in a million years, my old 5 was too beaten up according to Apple for them to uphold two warranty repairs so they gave me the choice to buy a new 5 64GB for only €250 for which I have dedicated lenses and a waterproof case or buy the new 6 with the same memory for €799 an render my accessories useless.
For me that was a really easy choice as I prefer the look and build of the 5 anyway, though I wouldn't have mind getting the 5S for the fingerprint login feature.