That sounds low to me
While a viable business strategy, from a personal value perspective, if you are an average CS college grad, you are by far not going contribute even close to $150k/year worth of value - you are going to do some menial basic code modifications.
So by all means, while you can go and take advantage of the inflated salaries to maximize your own profit as much as you can, but you cannot claim that $150k starting salary is too low.