I know announcements on new Macs are due soon but am considering one of the above. The MBA is £979 here in the UK but I can get the MB for £899. Is there much difference in performance of the CPUs between the two? I believe the Core M in the MB is not as fast. I am also aware of the lack of ports on the MB compared with the MBA. Looking to use for web browsing and productivity mainly. I am not too bothered about the retina screen but am attracted to the MB because of the lower price Would appreciate advice on this please.