6D + kit vs 550D + better glass

I had a lot of the same lenses and crop in the past... it was worthwhile selling it and moving up to the 5D2, and it'll be worthwhile for you moving to the 6D. All of those lenses can be replaced with similar cost FF items that will result in sharper photos.

I find myself shooting in low light more often
and the ISO performance of the 6D is very catchy...It may also help until I get a better glass

thanks for your help

: )