I've had the X10 for almost a year and the X100 since Nov 2011. I had been lusting after the Olympus OM-D EM-5 for since it was announced and finally gave it a try. Long story short, you don't always appreciate what you have with Fuji until you try another system. I forgot what a pain it is to change lenses and deal with slow lenses (unless you are in over $1000 for standard f/2.8 zoom). That little X10 is just so much fun, it fits in a pocket and the IQ is more than good enough for daily use. I've even used it for portraits in my home studio with success. Carrying the OM-D or X10 for a quick trip? The X10 wins. Auto WB? The X10 wins. Fun factor? X10 wins Value? X10 wins Skin tones? X10 wins AF speed? OM-D, no question Fastest zoom lens for <$1k? X10 I've really tried to love the OM-D, I really have - as I've been and Oly E-1 and E-3 user and Oly fan for years. But these Fuji's just "speak to me". I have a feeling that OM-D will be returned/sold and an X20 may join my X100 as the main kit. I'd rather carry these two than an small OM-D kit of fast glass and a slow kit lens (12-50 f/3.5-6.3), 45 f/1.8 and 25 f/1.4. The two Fuji's are easier and more fun! I'll have more relevant examples soon (probably a blog post later). Has anyone else had a similar experience of trying to go back to a larger system only to find the Fuji's calling to them?