If by "stand alone register" you mean one dedicated person with a pay pad - then no, same issue. Except now you likely have people wanting product tours and assistance gathering around the person designated as sales.
And if that person exists then I've never noticed because I have no idea what color shirt they were supposed to be wearing. Their interactions with the customers at our local store has been exactly the same as any other member of staff.
The buying process goes like this for myself and anyone I've ever been to the store with:
1. You pick up your product and look around aimlessly.
2. Move to the middle of the store.
3. Stand there like a lighthouse spinning around until you spot any Apple badge on any color shirt.
4. Wander over to them.
5. Stand there on lookout, shuffling your feet while they describe how a Macbook works to someone else.
6. Try and spot an opening anywhere else. Even if it's the mass huddle at the Genius Bar.
7. Get to the employee before they have to explain where the start menu is to another customer.
8. Fail and it's back to step 2.
No, stand alone as in the standard register -- where you would pay cash OR CC.