I switched to using USB drives to install the OS of a computer a long time ago. You can even keep them up to date with OS patches unlike burnt disks. Usually installs faster too.
I recently used a USB drive as a boot-only type device to pull up the install screen, then installed all of the ports and packages over my network.
That means prices will go down, right?
We can only hope. Recently HDD manufacturers seem to be coming up with any excuse possible to increase the price per unit and I could see them increasing the price just to lessen the blow of decreased sales.