I'm in a similar situation. 25 years old, $120K TC, and would be paying mostly out of pocket, although my employer would be covering some.
The employment statistics for FT and PT are almost identical according to Booth data - median salary of $125K PT and $130K FT. I don't know what mid-career looks like comparing the two programs, but given it's so similar in terms of comp and companies immediately upon graduation, I feel like you have to assume it's similar mid-career until there's data that shows otherwise.
If we assume the median sign-on is $25K and median bonus is 15%, I'd be looking at somewhere between a 5-7 year payback period depending on career progression.
Is that reasonable? I think so. Is it worth the loss of evenings or weekends for the next 2.5 years? That's a personal question.