X10 owners switch to X20 or not? Tell us...

I am keeping my X10, mainly because I am happy with it but also because I got a X100 and I am upgrading my Nikon DSLR body. To me it would be silly to upgrade for every new camera generation without at least really having discovered and learned how to master the full potential of the current tool. The same goes for my X100 which potentially delivers excellent image quality - it is all up the me to prove I can make use of it. X100S won't improve my images. As for my Nikon DSLR I am now in need for an upgrade to develop as a photographer (I really need a weatherproofed camera and better manual controls).