Don, beautiful semps with a really lovely dark red stage. : )
Critter, that is odd that you would have to call to get a name of a plant? Many places just sell un-named semps, which is okay if you don't care about having the name. If you look at the base of the leaves of the semp in your above link, you will notice that they are green. It will probably turn green with dark tips.
There are some semps that stay dark purple or red year round.
I'll see if I can make you a list of one or two that will stay red year round.
