I currently have a surefire E2d that I seldom use due to how quickly it runs through batteries and am considering upgrading to the E2d LED version due to its dual mode battery saving mode, or 200 lumen output mode when needed at shorter battery life. Does anyone here own the LED version and would you recommend it as an upgrade to the one I currently own? What is my old E2d worth, and what is the best way to sell it if the store does not take trade ins?