This is the new one with major improvements from the Ultimate Collectors Series in 2002. The old one had a big gap in the middle and the plates were held together by magnets. The internal structure was also made of blocks. The new one released this year, following the new Millennium Falcon last year, uses Technic parts for a stronger frame. I built the old Falcon with a combination of knock off and real Lego parts, but skipped the new one (75192) because I felt the new one didn't look Lego blocky enough. Given the new solid construction and blockier look of this kit, I decided to go for it. What sold me on the authentic kit here was the mottling on the big flat plate pieces which I noted on the display model at the Lego store. I know, it's a dumb thing; but it does make the authentic Lego product more appealing. Besides, Lego deserves my money. My son and I happened to have a ton of gift cards from the past two years which he had organized into his Ridge wallet. Wifey wasn't too excited at first glance in the store since because we already have so many gigantic Lego kits around the house; but when she and my daughter went clothes shopping, we bought the kit and ninja'd it into the car before she realized it. Stay tuned for a time lapse video of the build on YouTube.