Make an offer. Price negotiable.
Just to be clear, here. You're asking 150USD per PSU and not for the lot?
The PSU has a Poor OEM so 150$ sound only a little low for all of them, while 150$ per is way too high (can get EVGA for 100$ which are superb).
Yes per unit but that includes shipping from Canada. I felt that was a fair price to start, sorry if I'm way off base here. Not sure of its resale value and PSU's seem to be more expensive in Canada.