E-bodies, especially 'Cudas were the first to go bonkers on the $$$, Challengers followed.  Now Chargers seem to be spiking whereas everyone that had to have an E-body already bought it and had their fun.  Chargers could be had for $25-40k and struggled to hit $100k just 5 years ago, very different story on them now.  They are as hot as anything in the musclecar market right now IMO.  Very hard to find one.