some of my best domains are just 3 letter .nets i have recently picked up, including znd.net and lzl.net, though i do have a soft spot for one of my first domains i had purchase, and the first site i had really made, supercarnews.com
other than that, i dont really think you need a good domain to make good money. that is unless you want to rely on parking to monetise your domains, then youd need great domains for that. otherwise you can build up any domain into what you want it to be, it just takes time, effort, and motivation. sometimes i lack in a few of them
