Yeah Defenders are going to soar in value now that they no longer make them as of 2015. There are bidding wars for the last ones being produced in the UK. The redesigned Defender coming in 2 years has gone mainstream luxury, looks nothing and rides nothing like the previous Defender the past 70 years. The recent models in matte finish are beautiful, so much nicer than a MB G-Wagen. More info here...
http://www.thisismoney.co.uk/money/...y-soar-value-sold-production-ceases-soon.html
Unless you are talking about early 70's 2nd gens like a 71 Z28 or 74 455SD TransAm, not quite sure why the 2nd gen F-bodies are appreciating, they were all vastly under powered and choking with emissions robbing components and kept getting fatter and fatter. Not to mention there are still so many of the late 70's early 80's models out there in all trims in good condition, hard to see them take off in value.