I don't know whether it was a paid ad or just a plug by Paul W. Smith, but just seconds ago he announced, with the caveat that he "doesn't know if [he] could ever remember U-M football tickets being offered this way". He proceeded to describe an offer of season ticket packages for all 8 home games that were a one-time opportunity (no renewal privileges).
You know, I don't ever remember tickets being available like that either, let alone at this late date in the year.
I dare say Michigan's football program might be suffering a small dip in demand. Some of that is demand driven no doubt - the economy has depressed everyone's boat. But another part is supply - the quality of the Michigan product is in jeopardy for the first time, with Michigan's abysmal performance last year.