Yes, more than a million of the tablets may have shipped, but that doesn't mean they were sold. In fact, depending on which source you listen to, far fewer than a million Surface slates have been purchased.
IHS iSuppli told our sister site CNET that despite shipping over 1.25 million Surface units, Microsoft only sold about 700,000 of them. Even worse, return rates for the Surface RT were deemed "high," owing perhaps to the learning curve surronding Windows 8/RT. Analyst Rhoda Alexander did suggest, however, that the low initial sales and high returns was reminiscent of the
Amazon Kindle Fire's entry into the market.