Dell to buy Alienware

Oh great, so, Dell is going to buy Alienware, meaning one less company for them to compete with. I really don't understand why Dell is doing this a year after launching their own line of gaming PC's. This means two name brand competitors will no longer be competing with each other, possibly raising prices in the long run. I feel this is bad for the consumer in the long run, because the less people there are owning/controlling companies, the less competition, meaning higher prices.