I just have a few thoughts that are contradictory to pbmizzou and hope they help give another perspective.
when I transferred, my grades were not that great but my LSAT was top 97 percentile and I got into a top 20 law school. I received financial aid my 2L year and even got instate tuition because of my stats. I then got a scholarship for my 3L year and continued to get financial aid.
I transferred to get a better experience and I did. I got a much, much better education and thus, a better experience. I got a better job offers as a result of higher school rank (although, I have a huge rant on the job I landed and am not job-less because they were evil evil evil).
I do have to agree with pbmizzou that first year sections are very close. When I got to my new school, everyone was already in their cliques and not interested in expanding it. Although through law review and alcohol
I ended up meeting just as many people as I would have had I gone there the first year, but the first few months did suck (and my birthday is early in the fall and I think I had a birthday party of like 10 people
so, based on pbmizzou's experience and mine, I think it is differend from school to school.