Already have an Olympus PEN / EPL2 with 20mm 1.7. The X100 has dropped in price a lot, especially used / refurbed - now around £460 ish. Now that all the lust has settled and it's nearly 18 months + old, is it still worth getting? Has AF been ironed out now? Or in 6months after I've got bored of the retro looks will I be wondering why I even bothered (these seem to be resold very quickly too!) ?