Is it ever possible to get a deal on any of the suites? They, the Castle Club and Empire State Club are excluded from the extra nights free deal (and all deals?) on the website and you have to call to book, but are there ever any promo codes you can quote? Most of us on here seem to love a deal :)
No it is unlikely.
Many of the castle club rooms/ suites are a fixed price throughout the year. So you can't even get cheaper out of season
You used to be able to get some discounts (like with the shareholders club) for the non-park view rooms in the Castle Club, but that's gone now.
As far as I know all suites, CC and ESC are always excluded from all offers.