Fox, if I may politely refer you to posts #41 & #43 of the "Should I" thread, and then my first post at #54. I had chosen to remain a bystander to a thread whose topic I had little to add to, until I felt that I needed to defend the honour of the maligned spam can.
I entirely agree that the Chipmunk and 150 have nearly nothing in common, nor should be considered in the context of each other, other than history has brought two seat legacy trainers into a common context that they are each an aircraft which a person could choose to purchase for personal use. The person considering that, and possibly considering the 150 as an alternative to a Chipmunk (though I don't see why) would begin to compare them. Not me, I was staying out of it out of respect to the OP and thread drift....