Anything Leica or Zeiss will continue to hold prices, or even rise. Just don't get any ideas of thinking camera gear is an "investment". It is a lousy one, and prices go up and down for absolutely no discernible reason, except for this hard and fast rule...... if you're buying, expect to pay top dollar because prices will have suddenly shot upwards, and if you're selling, expect to get considerably less than you paid because prices will have suddenly fallen. THAT truism you can take to the bank (another lousy place for an investment, unless you're a banker).