I'd go.

You're close and even if you don't get a job this time around, the experience of this Job Fair will make you more comfortable at the next one. It will give you an insight into what the airlines expect, the questions they ask and what they might be looking for in a pilot. It would give you an opportunity to observe other pilots and see what you might want to do (or not do) at the next Fair and give you a chance to assess what you did well on and what you could have done better on.

What type of ME Turbine are you flying? Is it PIC or SIC time?