I just looked on the website - it's $17100 a year (for engineering). But how much is a two year state school? That would save some money at least for the first two years before transferring.
GA Tech is $12,500 if you don't stay on campus for a GA resident. If you meet the HOPE scholarship requirements (https://en.m.wikipedia.org/wiki/HOPE_Scholarship), it will pay 90% of the tuition costs - not including books and fees - reducing that cost by about $9000 a year.
If you don't have the qualifications for Hope, more than likely you wouldn't be admitted into GT anyway.
Yes the ethics of using the lottery to fund education is unclear and no it doesn't apply to every state, but is the University of Illionois worth it unless you are qualified for a high paying job to make the expense worth it (serious question - I don't know)? If not, are their cheaper state schools?