I'm in between the two so I think I would go with the 6, worst case scenario I'd have 14 days to return it and by then either 6+ is in stock or I go back to my 5 until it does. Or best case scenario I end up liking it and keep it.
No. If what I really wanted was the plus, I'm not going to settle for a different product simply to have the convenience of owning it sooner. I don't really buy into the whole "OWN IT FIRST!" hype. Much rather own something I'll be happy with the whole time I own it.