If you choose to become a Certified Flight Instructor, you can also get a job here at the University teaching. Students generally take on about 2-4 students per semester, depending on your class load. The one and only drawback to Purdue (no offense to the Indianians here) is its location. I'm just not real fond of the mountainless terrain.
As for costs, residents of Indiana can expect to pay about $60,000; $20,000 for each of the first two years (when you take flight lessons), and about $10,000 for each of teh last two years. If you're out of state, add about $10,000 per year to the price tag. It's not the cheapest way to go, but you have to pay for quality.
If you have any other questions at all, feel free to ask on here or to e-mail me