A good investment could be any project with working product and has demand.
Right now, masternodes seem to be profitable if you find the right coin. Exchange coins could also be a good investment since we could expect an explosive appreciation once mass adoption starts.
Exchange coins are pretty much hyping due to this new way of investment, IEO's makes the exchange tokens worthy, investors needs to buy the exchange tokens to have a better chance to participate with the sale offerings, if you can read more about exchange site who have their own tokens then you'll be seeing the benefits and the potentials of those tokens to be much valuable in coming years of successful marketing.