First off, Florida State is more of a "blueblood" than Florida the last 50 years. I know this, Jimbo had a problem with one of the bigger boosters, and I think had marital issues (remember Columbus, I am a WV Insider, I am friends and worked with his cousins, he is from Clarksburg, I worked in Clarksburg) and I know wanted some upgrades to facilities and staff salaries.
The problem with the move. At FSU the path to the top 10 and sustenance is much easier. At A&M, despite all the resources, and they have never been shy to throw money around starting with taking Jackie Sherrill from us, but nothing has ever paid off for A&M as far as making them a national power. They have had good teams, but most years, they find themselves battling for 3rd place in the SEC West, and if the cards are right, like this year, maybe 2nd place. But an Alabama or LSU and sometimes Auburn is always there to leap over.
I think A&M screwed up by going to the SEC.