It's nonsense as I doubt there is a single soul in B10 with any interest in aggy. But just to play the game:
Football - aggy carried their tradition of being mediocre from the SWC to the B12 to the SEC, so no reason to think otherwise with this move. That puts them finishing 7th or 8th in conference most years. Try and sell to a recruit a middling program that will require significant travel and be playing meaningless football in the upper midwest in November. Also must now deal with the fact you'll be surrounded by schools who will all be in the same living rooms selling the SEC and games the family can actually attend.
Baseball - here's where aggy could theoretically become a top program in a middling baseball conference. B10 was the 5th best conference last year (just beating out the Sun Belt) so not a difficult hill to climb. Bad RPI and bad weather, the perfect match. Yep, they'll easily bring in all the elite talent that wants to play in terrible weather and be largely non-existent on the national scene. Sign me up.
Basketball - lulz.
The Schloss saga is the gift that keeps on giving.