I think the NIT is ok if you're a team that barely finished .500, or if you're from a small conference that only gets one team in the dance and you were upset in your conference tourney.
But for a team like UT that would have barely not made the NCAAT, I can't see what good it will be. Last year proved the extra playing time didn't do much, and historically there is no real correlation between it and future success. The only good I can see is it lets the seniors put on the uniform a few more times.
For the fans, it means jack squat, and on top of that we're already let down by not making the dance. I'm sure Martin would accept the bid, but I'm not really going to care that much.