I'd say right now it's not so much about savings but rather if you can actually get ahold of the model/ ref# you want. (Although that might work out considering exchange rates, sales tax, vat, and return thereof!)
You might also have luck given your choice of a white gold Lady-Date-Just w/ diamonds - but don't count on it.
Currently, if I was after a Rolex and had the actual chance of buying the exact model/ ref# I want, I wouldn't hesitate and buy it right away. The market is crazy, mostly for everything steel/ sport models. But I've actually seen a lot of empty displays lately. Definitely more of a seller's market right now.
Kind regards,
Oliver
Totally, this