Yep you hear it right. All our bulbs don't come with any leaves and there's good reason for this.
First and foremost a bulb that has no leaves and has yet to germinate takes to its new environment very very well - once placed in a tank, a new shoot normally shows within 48 hours. A bulb that already has leaves may not adapt so well to its new home and you run the risk of the bulb becoming dormant - and you don't want that do you?
Secondly, bulbs without any leaves ship easily and safely. There's nothing worse than receiving a bulb with all the leaves detached. And no matter how well you package, this does happen, trust me.
And here's a tip for you. When you receive your bulb/s you might wonder which way is up. The answer is it doesn't really matter. I recommend you drop the bulb to where you want it to grow and let nature take its cause.