I don't believe I'm a slow learner, but it took me about 1 year from first learning about Bitcoin to becoming comfortable enough with the technology to speculate on it.
I honestly believe it will replace Gold as a store of value, but it will take a very long time for the general public to understand it enough and/or trust it enough that they'll sell any amount of gold for bitcoins. But when they do, perhaps in a slow process that peaks around 15 years from now, the value of a single bitcoin could end up somewhere around $300k.
I personally estimate the likelihood of this being around 10-15%. So yeah, I'm still buying more today.
There aren't many elements on the periodic table, and even fewer are viable as metallic currencies: rare enough to have value in small weight, not so rare as to be foreign (historically) to many cultures. Gold has a visceral, visual advantage, too: it's the only yellow metal.
On the other hand, anyone can launch a new cryptocurrency. There's no natural monopoly there. The idea is valid, but all Bitcoin has to defend itself against competition is the brand/reputation. And people hate Bitcoin because it was clearly set up to favor early adopters for no good reason.
If Satoshi came out of the high tower and announced plans for his stash, I would feel a little bit better. When/if BTC hits 1m/BTC his stash would be worth 2T and that is a lot of claim checks on society.
Getting only 15% of your savings is not a good result :)