Hello! The first thing you should know is that, as of right now, there are more differences between the regular Submariner models and the Submariner Date than just the date complication. Here they are side by side, for comparison:
There are lots of cosmetic differences, and to my eyes, the "maxi" dial markings and hands stand out the most. Basically the hour markers and hands are fatter and more pronounced on the Sub Date. Also the bracelet and clasp are higher quality on the new model. You can probably see other differences too, and there are quite a few. Everyone has different preferences and you should go for the one you like best. Just be aware that they aren't
exactly the same watch. BUT Rolex is changing the no-date Sub over to the maxi look and feel soon and they'll resemble one another more closely again.
In my opinion, since you asked, I'd go for the regular no-date Sub every time, especially while the old model is still available. Not only is it cheaper, but the smaller hands and dial markings look more classic and elegant than the new styling. These days cars have giant badging, people wear giant watches, and we have giant hands on those watches. It's a trend, I think, and I'm not really into trends. So the classic Sub gets my vote.
As for USA distributors and discounting, there are some discounts available but not much these days. Rolex dealers are becoming rarer and there's less price competition so deals are harder to find. That's my experience anyway. I don't know export/customs laws regarding export of Rolex watches from the USA, so it may not be an option anyway. Someone else on here will probably know about that.