With that amount of income, you'd better be saving it. If you've gone that far, though, you could take a gamble to buy your own/build your own server and upgrade your home internet (or find a friend who owns a server farm like I did :P) in attempt to sell VPSs and such. It seems like easy cash, since Minecraft isn't looking like it's slowing down, and there's always little/lesser known servers which people always want to start; even if it doesn't last there's likely to be someone willing to take their spot. It's a gamble, like I said, since it's heavily reputation and advertising based, but it can pay huge dividends over time. [Edited on 08.29.2012 11:17 AM PDT]