Yeah, I remember getting 30% off my Speedy at an Omega AD as well...but I think those days are long gone. It's still no Rolex though, so it can't hurt to ask.
I know you're looking for something new, and you said this is it after this purchase (famous last words?), but if you're ever looking for a vintage Omega,
https://www.omegaenthusiastltd.com has some pretty cool stuff. Canadian too, so no duty.