well, DVD burners are becoming more and more prevalent, so it does make sense to own some kind of DVD drive to be able to play them.
dvd burners are standard on high end systems now, so. imagine in 2 years what it will be like when prices will be at $200 or less. i *believe* they are at $300 now, although they might have sunk a little lower. i don't really keep track of thse things much, as i have 0 intention of buying one; let other people buy them and i will use it