POS doesn't require any special equipment, also there is no a running cost, i.e. it is just a regular electricity consumption of your laptop. Let's say, POS is accessible for everybody easier than POW. That's why i prefer this way. Also there are pools for those unable to keep a wallet open 24/7. In this way POS looks like a truly passive income: you need just get coins, place them to pool and await for an income. Of course, a risk of scam remains, but where is not this risk? Also POW or any other doesn't protect from such risks.