I ordered TWO things in my life that took a long time to receive:
ONE was an Astrophysics telescope and separately an equatorial mount. Fifteen years later I got a call that said the scope was ready to be shipped out but the mount might take another 4 or 5 years. I felt lucky to have moved up to #1 on the list but I didn't want to sit around another 5 years for the rest of the unit. So I cancelled - a handmade, difficult to get superior optics scope! I felt terrible that I cancelled but glad I had moved up on the list over 10 years.
TWO, and this is a little more humorous, I was 12 or 13 years old and wanted to watch Bozo's Circus in Chicago. I heard it was a long wait but I was 12 or 13, had all the time in the world and the tickets were free. I ordered 3 of them. 15-30 years later I received a postcard from WGN Chicago. My 3 tickets were ready. Unfortunately by that time, I was 30 years old and in medical school in Mexico. I couldn't make the show so I gave my tickets to my 23 and 15 year old sisters and my 32 year old best friend who had become a lawyer by this time. He showed up at WGN just a bit late. They asked why he was there and he told them "I'm here to see Bozo." Since he had come directly from work, and he had his three piece lawyers suit on, they thought he was there to see Bozo about a legal matter and that he was already on stage. "No, I'm here to see the show," he said so they got him him in the bleaches with the other kids. Then it was time for the Grand Prize Game, they had two arrows to pick out a child for the bucket game. If the arrow landed on an older woman or man, they would say "It's s daddy" or "It's a momm.," and do it again until they got a child. It landed on him and they said "It's a daddy." After he stated that he was definitely not a Daddy as far as he knew, they passed him by anyway for a child, even though he really, really wanted to play the game. He sat there in his 3 piece suit and was disappointed he couldn't play the Grand Prize Game with the other kids, but he was still thankful that after 20 years he was still able to watch Chicago's Bozo's Circus.
The moral of the story is that if you don't get your Z9 until your're in your 90s, you'll still enjoy it, barring you haven't developed hearing problems by then, or Parkinsons, or cataracts or some other condition that precludes you from operating the camera. And what if by then they come up with a Z10 that does absolutely everything that Z9 won't - 300fps, faster focusing than a speeding bullet, etc. Will you happily take that Z9, or "pre-order" the Z10 and wait til you're 100 ?