Bill, no real reason,, other then to promote how we at times will answer these question,, and going back over posts, there is " some bias to personnal preference" Honestly,, don't tell anyone this,, I'll deny it,, Now if there was a pre 70's 150 with a 150 hp, long range tanks, full avionics stack low time and newer paint,, probably wouldn't take much arm twisting to get my interest,, Is the year a real consideration in making a decision,, no, and if it is,, it should have very little weighting,, Bill, hope I answered your question, I"m trying to promote a philosiphical debate regarding the original question, One that I've wandered about many times as I've seen posts like these.