Yes, I believe you should invest in Bitcoin. But when I say invest, I don't just mean obtaining some bitcoins and holding on to them, only to sell them at a profit later. I mean investing by spending time and energy learning, discussing, using, coding, and enquiring about Bitcoin. The arrival of Bitcoin as a new financial technology heralds a time for us all to consider deeply what gives anything value, and why we do (or don't) use a form of money for a given exchange of goods/services in various circumstances, and why we have money in the first place.
Bitcoin will only take on value because it meets a need within society that existing commodities don't meet in the same way. I hope that people will learn more about what makes Bitcoin different from other forms of value and why it works well as a form of currency, and then use it, spend it, accept it for goods and services that they offer. Simply investing in something, keeping it stored up doesn't do all of us much good. Getting Bitcoin to a point where you and many, many others utilize it as a part of an economy because it is more efficient, affordable and convenient to use will benefit us all.
If, after researching Bitcoin, you do decide that Bitcoin would be a good thing for society to embrace (and I do), then I'd encourage you to invest time promoting, discussing, using, protecting the use of Bitcoin and building systems to allow for Bitcoin to be utilized by as many people as possible. And if you happen to make a profit on *SOME* of your bitcoins along the way, then more power to you.