I have the SX260 and am mostly happy with it, for what it is. IQ is my biggest problem. I am considering adding the S100 to my lineup. Is there enough difference to warrant spending the money? I just can't see it on sites like CameraLabs and DPReview. I use the 60D and have a T1i that gets little use. I could just keep the T1i in the car all the time. What would you do? Opinions, please.