The best part is that they are very cheap, so I can afford to buy many for my work place! They don't last too long in our humid climate (southeast Queensland) but even with this disadvantage it's still worth buying them if you need flowers around your desk or workplace - especially when there isn't much else available at short notice.
It would be great if we could get some more varieties of dianthuses like pink ones as well. You cant beat their price either. We have used these plants extensively since purchasing several years ago now.