The biggest points you missed Adam, are the biggest selling points to me: the TINY and TIGHT coding that comes with four engineers building a product, instead of the ...dozens? hundreds? of avid engineers hacking together enormous gobs of decade old frankensteined code and bloat that was PT 7 and 8. Can't comment on 9 as I haven't used it yet!
But adam, i'm sure having the deeply rooted computer instinct, you can feel how well-coded Reaper is every time you switch from one to the other. You can just tell as you use it, yanno? I love applications that are tiny and lite and streamlined.