The Audience here on WatchProSite is definitely one that's more inclined to high horology. For better or worse, we are the most technically inclined and sophisticated group of watch lovers on the internet. Many other forums have much less technical conversations than what we have here. WatchProSite also has developed a reputation on the internet as the place where "knowledgeable watch collectors" go since we are a more technically inclined audience. Thus, the Octo Finissimo is a more logical choice since the movement is much more special in terms of the ultra thin movement and the high horology associations attributed to ultra thin movements. Another potential answer to the original question, why Roma isn't often mentioned, may be attributed to the fact that Bulgari pays more emphasis on Octo Finissimo than Octo Roma. Octo Finissimo has more PR coverage due to all the awards won and records broken. Octo Finissimo also just looks more special due to its ultra thin profile when Octo Roma may look more ordinary.