Hey, congratulations to you as well
I would just be paying for the time I attend, so I guess that's an incentive and also reduces my COA for one year. And I just got accepted earlier this week so I am still looking for housing options, etc. so I am not too sure about the COA.
My other options are UIUC, which is another school that has offered me advanced standing and I am still waiting to hear from a couple of other schools I applied to but I really am impressed by Wash U, not just because of the fact that it's a t20 school but from the overall impression I got during my conversations with the school staff.
More Chicago employers will come to UIUC and there will be more UIUC alumni in the Chicago market. But there will also be many more classmates who are also gunning for Chicago. Basically everyone at UIUC is there because they wanna work in Chicago.
You'll need similar grades from both schools to have a chance at Chicago BigLaw
Personally I think you're better off coming to WashU once you adjust for the added peer competition. Less people here want Chicago, I think our class size is smaller than UIUC, and we still draw a healthy number of Chicago firms (once you include both OCI and the Off-Campus Chicago Program).
WashU also just has more financial resources at its disposal. For example if you decide you want to pursue Public Interest instead, then WashU gives you a summer stipend for both your 1L and 2L summers to do unpaid PI work. Our peers up and down the hierarchy don't do this. (I think at BU you need to win some named fellowship to get the same funding) And you'll probably have more eggs in more baskets in terms of your market options if you ever change your mind about going to Chicago.