Well, IMO the times where you can make some serious profit with mining at home are over. It is becoming a serious business. But thats only normal. Every marked becomes more competitive as it grows and that the Small Private Businesses die out is also normal when a marked grows.
Don't expect to make some serious money mining. But if you want to get in as a father son project where you can spend time with you son and build something together have fun and maybe puts out a little bit of money, I would say buy some usb miners.