Here's what I would do if I were you (assuming I had no extra funds to invest): Mine litecoins. Keep em, save em, store em. Take $5 and buy 1 Bitcoin, or (in about 2-3 weeks) take 100 mined litecoins and sell them for .1 BTC. Save that, and store it.
Then wait 10-20 years and see if you're wealthy.
Hehe, that's sort of what my policy is right now. All I have for bitcoin mining is an old Nvidia GeForce GT 240 at 15–20 MH/s with p2pool, so I'm not going to make a ton of bitcoins any time soon, but what the heck.
It almost seems that CPU-mining Litecoins and then trading them for Bitcoin is more profitable at this rate (old GPU, but fairly recent mid-range CPU), though the high variance could be fooling me. What I intend to do is trade some Litecoin for Bitcoin (especially if Litecoin's price happens to rise), but keep a little of both. Then wait a few years and see what happens.