Job prospects, scholarships, and region are less important to me than quality of the education, as I will not be pursuing a legal career and my business will pay the tuition costs.
I completely understand your concerns, but let me make a few suggestions. If you are not going to practice law then you may want to consider limiting the cost of your J.D. The fact is, the education you receive at any of the ABA schools to which you're likely to gain admission is going to be nearly identical.
Legal education has been standardized to large degree, in fact that's the one of the advantages of attending an ABA approved law school. In order to achieve accreditation the schools have to meet a laundry list of academic, financial and administrative criteria. They all follow the Socratic method, they all follow the case method, and you will read the exact same textbooks and discuss the exact same salient legal points at just about any ABA school. The same can probably be said for the California accredited (CBE) schools, too.
Of course, some schools are more prestigious than others but that isn't because the teaching is necessarily better or because they utilize a different method. Prestige has more to do with selectivity in admissions and the school's "aura", which is difficult to define or replicate. I remember that my evidence professor once showed us an evidence exam from Harvard law school. I was struck by the fact that it was very similar to the exam that I took at my local ABA school, definitely not more difficult.
With a 2.89/155 you're not going to be in the running for any of the elite law schools anyway (not trying to be rude, just pointing out a fact). The schools you do gain admission to will be ones with local or regional reputations, and will be on about the same level of prestige. Therefore, it probably isn't worth accruing the extra expense to attend a non-elite out of state school unless you really want to live in that particular city for three or four years.
Lastly, remember that a given school is not necessarily going to be viewed as a superior institution simply because it is ranked as T1. Many T1 schools have decent local reputations but are largely unknown outside of their immediate region. In many cases a cheap local T2-T4 degree is just about as useful as an out of state T1 degree. Don't let the USNWR rankings scheme drive your decision making process, and take the time to understand it's limitations.