Not for $150 bucks. If you think it will serve your needs, offer them 50 bucks and maybe be willing to dicker up to 100.
For six miles round trip just about any bike will do, but there are things like road or path conditions or what you carry and how you want to carry it that may make some bikes more suitable than others.
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"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey