first things first ... sorry for all the typos in my last message. I had just finished a long day with 4 hrs of sleep the night before.
I think your question is valid. Everybody has to find the right answer for themselves. IF I get into any of the top programs I will likely finish with 50-90k CAD debt and nothing to my name (even my car is a lease)
I still think it's worth it for me though bc I've been looking forward to an MBA ever since I started undergrad. If you do it just for the ROI you may or may not end up losing money. I can imagine the regret of this choice having been a bad investment to be quite painful in hindsight.
But if you take personal satisfaction out of it ... that's what an NPV calc cannot quantify.
But I think you mentioned that you have 3 yrs of WE. It can't hurt to wait for another year if you are uncomfortable with the economy.