Except for the noise of the auto-focus on the G2, the only reason to get a Leica instead is snob factor. The optics are phenomenal, and everything is a fraction of the price of Leica gear. I took my G2 on vacation with me to Barcelona, along with the 21, 28, 45 and 90 lenses. The G2 and 21 paid for themselves on that trip in after-the-fact print sales. Try and find a 21mm lens with finder for the Leica M for under $1K That 21 has become one of my all-time favorite lenses and I'm normally a mild tele kind of guy.