so far overall a net negative. I can't spend it or hold it really. I can't spend because nobody takes it, I can't hold it because I fear losing my coins.....
I hold more than I am comfortable holding so I have wasted time stressing always expecting that I will be one of those sorry asses that posts "how did this happen" topics about their coins disappearing.
Cost : Lots of stress, wasted time
Benefits: None
No i am not going to sell my coins though.
There is many ways to spend your bitcoins, who said no one want to take it? If you search it in the digital goods tab there are many things that you can buy that I scare enough to there because I will spend it like crazy buying all things
Cost : None
Benefits: Many benefits, the most people agree on is the efficience and the online. You can make it online just need some wifi

Well it has been easier to spend the bitcoin in many stuff in life.
You can check the digital goods as you said and there are many thing there.
Also if you want to buy from amazon you can buy cheaper there that using cash.