Way to make me feel old guys.
I still have my 901 DSE with a blue led AND a crappy KR808D in a drawer somewhere. Those are ancient compared to the 510's
I don't have any KR808D's around anymore, but I still have some cartos for it. All my KR808D's ended up in the washing machine which is why I quit vaping and went back to stinkies for awhile.
When I came back went straight to eGo's and beyond. Now I'm at my third ProVari (yeah third...don't ask....stupid classifieds..) and ironically if that one ever took a dive into the washing machine, it would probably survive....