It turns out the Wildcats never relinquished their lead.
"I felt like Kentucky's worst situation would be better than a lot of the better situations at the other schools," Booker told Scout.com an in exclusive interview.
"Going into my college decision a lot of it was playing with Tyler [Ulis]," he added. "I've been playing with Tyler at camps the past two years. He finds you wherever you are at. He just makes the game a lot easier for me."
Ulis, Scout.com's No. 29 prospect and No. 6 point guard, committed to Kentucky on September 13th. Ulis and Booker first became friends at the Nike Elite 100 camp in June of 2012 where they played on the same camp team.
"It's a lot of what everyone is doing now a days," Booker said. "Going in kind of as a package. I want to be around people I'm comfortable with, people I've hung out with and people I keep in contact with."
"It was mainly my decision, but Tyler and I have been talking about going to college together since our first camp, the Elite 100," he added. "Right then I was like ‘wow' I wanted to play on the same team as Tyler."
Kentucky had other draws as well. Calipari's reputation for churning out pros and their blueprint for success played into Booker's decision making.
"I'm not going in saying I'm one and done or anything, but it's definitely one of my goals," he said. "I'm the type that needs to see it with my own eyes instead of a coach telling me I could be a pro anywhere. A lot of coaches said I could be a pro at any program I went to, but I don't really believe that."
Booker also said a few guards that recently played at Kentucky factored into his decision-making.
"Just the history of big guards going there," he said. "Guys like Brandon Knight and guys that can shoot. I've seen Brandon Knight in their system and guys like Doron Lamb in their system. It shows that if you can shoot, you fit into their offense."