Yeah, if you attend a state-accredited law school, you will most likely need to practive 3-5 years in that state before most other states allow you to take their bar exam. But the truth is most of us will at least initially practice in a specific state anyways.
My Dad went to Southwestern before it became ABA accredited. He had a successful career in the Los Angeles District Attorney's Office, retiring nicely as a senior Deputy DA. A number of his classmates ended up in private practice and were very successful.
Don't get me wrong, if I get accepted to one of my ABA schools, I'll probably spend at least the first year there. I can always transfer those units back into a non-ABA school. But for me there's a lot to consider: I'm a good 1 to 1.5 hour drive from both ABA schools, have a full-time day job, and participate in another start-up company on the side. Further, I've crunched the numbers for all my potential options. Ventura (Non-ABA) will end up costing me about $25k over 4 years, whereas Loyola or Southwestern (both ABA) will be around $90k - $95k over 4 years. This calculation takes into account additional fuel and wear-and-tear on the vehicle. That's about $70k difference. Now, wouldn't you spend the first 3 year of practice in-state if you were given an up-front bonus of $70,000 (after-taxes)? You know what I'm saying.