Yeah, we are average people with shit knowledge about many things. There are big portion of people who are mastering their hacking arts and making the hacks possible even on the strongly guarded exchanger. Now assume we are just a home outside the kingdom middle of no where. I guess that makes us more vulnerable. Private keys are really mess when it comes to saving them. I have got 30 private keys cop pasted in my notes and I check them regularly over my laptop. They can give access to SHIT coins but still they are worth something and if I loose them then its big loss. I am considering buying Ledger as I have seen its more positive reviews and it is comparatively very much cheaper.