So I bought an em10 and a few inexpensive lenses. Oly 40-150 4-5.6, Sigma 30/2.8, and 60/2.8. I bought it for street and travel. All of the sudden I'm using it for EVERYTHING! My Canon 7d is an awesome camera but I feel like it's a real burden all of the sudden. I'm not telling you all things you don't know but I've been surprised at a few aspects of m43. First is DOF. Everyone tall abut the sacrifice you make in regard to depth of field. That can be true with portraits but can also be overcome by shooting a longer focal length. BUT it also allows you to shoot the many m43 fast primes wide open and get your subject in focus. This is especially useful in action shots where a shallow depth of field is a hindrance. But shooting an m43 at 2.8 or even 1.8 gives a more useable DOF in more instances than not. I actually prefer it and welcome it! The EVF. Again I was warned about the EVF. I love it! The em10 doesn't have the best one around so I'm excited to experience the em1. But again it's part of the m43 system I was warned about bit turned out to be BETTER than the optical in DSLRs. Next is affordability. I'm a hobbyist and don't make money off of photography. I have 2 small kids in private school and I can't justify buying Canon L glass other than the rare occasion. The M43 lens lineup is SPECTACULAR! I can buy incredible glass at affordable prices. So I can treat myself throughout the year and have a first class system. Lastly, obviously size. I shoot a lot of wildlife with my Canon 7D and Sigma 150-500. It's a huge combo and is very heavy when hiking miles and becomes a true burden. I also get stopped and asked a million questions. Sometimes they tell me about their cousins friends boyfriend who owns a camera. This doesn't happen with my em10...which I love. I've listed my Canon gear on Craigslist and will but the em1 and several lenses to replace it. But the smallness of the em10 will probably mean it goes with me. Here are a few shots from the em10 with the cheap 40-150 and the Sigma 30mm 2.8. LOVING the m43 world!!!!