Domains should be bought because they have built-in value, at least in your eyes. Not just because there is a very remote possibility that somebody might want to buy it.
i would avoid 3 = e type of names. no L=1 ? The "nerdy" crowd already grabbed the ones that would at least have some trading value. Like going to the star wars convention and try to get guys with 10 mint chewbaccas from the 70's and ask them to buy your 2012 McDonalds chewbacca