Especially seeing how exchanges are getting hacked (whereas block chain based exchanges can't be hacked on a same massive scale, safe through individual's account who do not practice the usual precaution), or the Chinese government actively banning activity on centralized exchanges that can be easily shut down, no need to worry if the exchange might run away with your funds (i.e. these exchanges also acts as blockchain based wallets for your altcoins).
Maybe 2018 will be the year for these Decentralized Exchange projects to prosper too?
I'm seriously considering to get into AirSwap (AST) as one of my lower MCAP altcoins now (for its potential for bigger %gains due to the low MCAP).
IMO decentralized exchange utility tokens are a good buy specially when they are better above the rest. It is very likely that people will turn into using decentralized exchanges if hacks here and there continues and if banning of crypto happens soon on another country. 2018 might be the year for Decentalized exchange projects to prosper but if they wont this year, I am sure that they will in the next few years.