i have not heard the 65 to 67. i can comment on someone who has and they say the 67 is significantly better. i do know that my 67 is amazing. i have heard live broadcasts of the local symphony.....holly smokes! my unit is stock w/o ever being worked on. if you enjoy listening to the radio....it is worth the money. as for ebay. check out the feed back of the seller. i think you would do better on audiogon. anyway....good luck
jim
jim