If you can afford it, have both. The modern cars are really pretty good now. I have a pro street Hemi demon with EFI and gear vendors overdrive, Alterkation frame with power rack steering and it's quite nice compared to most of the old Mopars I've had. But, I get as much enjoyment or more from my 2012 GT500. If most had driven the modern mustangs, Challenger or Camaro, you'd have to agree they are light years better in most categories then the cars from the 70's. The older cars only seem to have the edge in the "cool" factor. A more rare modern care like a GT500, Boss, SRT-8 or ZL-1 come close in the "cool" factor. While my GT500 does attract more attention than a standard 5.0 would, it's nowhere near the attention the Demon gets. If I had to get rid of one of them, it would be extremely hard, but I'd ditch the Demon before the GT500.