eReaderGames.com is probably worth the $8 as a speculative play. The .net is worth zero, and eReaderAds.com is worth zero. So, you have $25 or so invested which is a bit much for the lottery ticket. You would have been much better off taking eReaderGames.com only and taking your $8 shot and then seeing what happens.
I can imagine a scenario where you could get lucky with the first one, but there is really no scenario to turn the second two into valuable names.