I hope I'm not going to get in trouble for bumping this thread, but I've searched the altcoin section for NAV, which I've just become interested in, and all of the topics are years old. There doesn't seem to be much active discussion about certain PoS coins lately.
NEO is great because you don't have to keep your machine running all the time to stake. Also, you can leave some of them in binance and they will collect the GAS on you behalf and put it in your wallet. Passive income
Funny I came across your post, because I've been saying the same thing in other threads, except I wouldn't keep NEO on Binance in order to stake. There's no reason not to use the Neon wallet, which is by far one of the best I've seen. NEO has become one of my favorite coins for the reasons you mentioned. The other PoS coin I'm passionate about is PIVX, but you have to keep the wallet running constantly and I hate to do it.
I don't really think that staking for this days will give big returns.
Maybe not huge returns in terms of capital gains--but it's certainly possible--but the ability to earn income on top of whatever price increase may happen is a big plus in my book.