Just finished the book I wanted to read for a long time this weekend. Hackers and Painters by Paul Graham. I learned a lot from the book. Highly recommend for people with a tech background.
I think if you want to focus on high tech industry. You can save your $150, 000 investment on going to a business school. You can learn just as much, if not more, from good books and resources available on the internet.
I learned a lot from series of videos Paul's Y Combinator, a silicon valley incubator, shared on the internet. Here are some of the YC videos I enjoyed in the past:
Groupon's Andrew Mason
Facebook's Mark Zuckerberg