I disagree with those who commented that law school itself stinks. I enjoyed it, and I know others who enjoyed it. Not everyone does, and I believe people when they say they hated it, but it's not a terrible experience for everyone.
That said, I'm in full agreement that the schools you're looking at are not worthwhile investments for you. The fact that you already have a good job means that you're not just taking on debt, you're foregoing three years of experience and earnings. Think about how that will affect your entire future income stream. Now, some lawyers rake in.a lot of dough after graduating, but there's a sharp dividing line between the haves and have nots. You could end up with a starting salary at 160,000 (for a top firm in Chicago) or 50,000. And at the schools you're looking at, you'll need to finish at or near the top of your class to even get an interview at the top firms.
If you do decide that you'll be really happy as a lawyer, then I'd go to the best law school in state where you want to live. Detroit firms are more likely to hire from Wayne State than from Kent. And then do two things: work your ass off, because you'll need excellent grades, and network like crazy. Start thinking about getting your foot in the door at good firms before you even walk onto campus. Get coffee with alums of your school to ask them about their experience. You can also build up your resume by participating in a journal, clinic, or moot court competition.
Good luck. You're doing the smart thing by reaching out for advice.