There used to be one choice for burning your own CDs: CD-R. Then CD-RW drives came on the scene, but you had to pay big bucks to get one. Now CD-RWs are the norm, and prices have fallen well below $300 for many models. With even the cost of the medium dropping, CD-R-only drives are becoming an endangered species. While CD-RW drives can write to CD-R discs, CD-R drives can't write to CD-RW discs. Buying a CD-RW increases your options.
The Toshiba SD-R1002 is in a class all its own. It can 4x write, 4x rewrite, play 24x CD-ROMs and play DVDs at 4x. At $289 (street) for the Toshiba, it's clear that DVD capability doesn't add too much to prices. You can get faster write and rewrite speeds in non-DVD drives for about the same amount of money, but, well, you can't access DVDs with them.