Sigma Brushes Ordered

Ordered the standard 12 brush set from Sigma today.  While I'm happy that they're on their way, I was a little disappointed at the fact that the $99 set that includes the brush roll was available, every single individual brush was available, but the standard set of 12 for $79 without the brush roll that I wanted was somehow "out of stock."  I had to pay $20 more for something that, while it's a very nice brush roll, it's still a brush roll that I don't need.