It's a wonderfully first world problem, and you're spot on, Mark. I came within a gnat's whisker of a GT3 recently, which was hilarious and insane but in so many ways nothing like as good as the GTS in "normal" use, and with less charisma, plus Mrs Crud mandates four seats for another year or so. The 599 is now climbing in price and is frequently more expensive than an FF (FFS!) and, frankly, quite old technology and high running costs (plus the seat "issue"). The Stradale is too much the same as the GTS. Sure, it might handle better and have a nice party frock but when I see it on the drive it would look just the same.
The new McLaren Sports Series looks good, and FFs are still coming down. Money no object I'd have an F12. When two seats is good, anyway.