A good friend of mind decided recently to get himself a "proper camera". He tapped my brains for what to buy and of course I plugged mirrorless and u43 in particular (by way of context, I've been a keen amateur since my teens back in the 70s and have been through many systems, including about 6 years with Canon DSLRs). What did he buy? - a Nikon D3100. Why didn't he buy mirrorless? - two reasons: - Price. Nikon was £300 with kit lens. Nearest Oly is the OM10 at twice that price. - Image. The Nikon looks more like what he thinks a serious camera should be. I think this sums up the real impediments to greater u43 penetration, at least in the UK (and I think the US too). Both need addressing.