Maternodes are profitable if u buy at the cheap price.
Master nodes are good as it allows cheap transaction and allot of them to be done second but it is less secure than mining and it takes some coins to start off mining is less and will cause btc to fall behind master node because it is more expensive and less beneficial for people using it the successful coins will have allot of transaction per second and cheap fees as well as being secure.
in conclusion, master node coins will be the future of cryptos