Go go market unification. Well, not just yet, but it could be coming. Even with regulatory "question marks" looming, Mel Karmazin says he'd buy XM if the price were right.

The merger idea has been floated before, and many are certain that a consolidation between the two is inevitable in the long term. Still, when Karmazin talks, people listen and when he talks about a buy out of rival XM, it gets everyone talking.

Not the least of which is long time industry cheerleader, The Motley Fool. In the Fool's analysis, "If it does happen, it's likely to happen sooner rather than later. If XM and Sirius hit their mark and start producing positive operating cash flow in a few quarters, a lot of the bearish sentiment that has been marinating the stocks in recent months will evaporate. Prices will start inching higher, creating less of an incentive for XM and Sirius to cash out, and the potential acquirers may not be willing to pay those higher prices."

The Motley's have a point. Profitable, these two are going to be giants to contend with in terms of stock price. They will have created a new industry, something that isn't easy to do. To the victor goes the spoils, as they say.