I'm 6' 5" with 35" inside leg. I ride a 61cm Cannondale road bike, a 61cm Specialized Steel framed fixed gear, and I'm in the process of renovating and converting an 80's Peugeot road bike with a 62cm frame.
You are right in some ways, I asked the same question in my LBS a while back, and the owner said if you look at pro riders in the 80's they rode larger frames with generally less seat post on view, nowadays they all seem to ride compact frames with loads of seat post where applicable. Look at Wiggins, 6' 3" and Pinarello don't make frames bigger than 59cm!
I find that any frame with the modern trend for sloping top tubes just look daft under me TBH, so I stick to traditional geometry both for this reason and the fact that I just don't like sloping top tubes myself.
I also used to have a 2006 Trek Madone 5.5 in a 60cm and it was perfect, I then saw the 2009 Madone, (with change to sloping geometry), I sat on a 60 and it nearly went up my arse! (I exaggerate for effect), but the truth is I would have had to go to a 63 to get the right fit.
Like others have said, go and try some, sit on loads, and ride even more. Size calculators are just a guide IMO, they will point you the general right direction, but don't allow for quirks, tweaks and personal preferences.
Good luck, there's nothing quite like hunting for a new bike