False, you can still make arbitrage or just make profit from buying neo on different exchanges.
The only good thing to buy the neo when the price goes down a lot and you will get cheap neo
Take Binance - Poloniex are references
Poloniex has one of the most expensive rates for almost all the altcoins, while Binance, has an intermedium price, not cheap, and not expenve as poloniex.
But you are not going to get each neo with a $3 or $5 discount, forget about that.
Maybe you can get them on binance at a difference of less than $0,25 or so. It is not a lot, but if you buy a bunch of neo, then it is going to be a big difference.