I would not buy it till using bitcoin in our country will be same legal as cash.
I needn't evidence that I use Bitcoin or other e-currencies, while this can be used against me.
HW wallet hard to hide or destroy quickly
Which country are you from? Most countries i know off don't seem to care about bitcoin, as long as you pay taxes on your deals
Russia, Ukraine, no matter, same law problems.
If you just use emoney to pay few times a month few dollars - nobody cares.
But if you use e-currencies in your business - take care of yourself.
I'm use them about 12 years, and, believe me, it was better, when most clerks don't know what is wm (btc etc.).
Now they know, but in their heads it's synonym of money laundering, unpaid taxes etc. No restrictions against BTC, WM directly yet (but in process). But small business has laws that say: you can accept cash and wire transfers only. Big companies has more complex laws and more tax audit too.