Do you own a house? If so I'd invest that money by improving things around the house. Use it to increase the square footage, update appliances - add things like solar or wind turbines and cut your electric bill down to nothing, and on good days sell your electricity back to the grid... change your hot water heater to a tank-less on demand one etc... finish your basement.
By the time you've outgrown your house you can sell it for a good amount more than what you bought it for most likely and you get the benefit of enjoying your living space.
- just a thought.