You have to define "last place". If "last place" meant being outsold by the 360 by two or three to one, then no, that's not a good position. But the 360, despite its far lower cost, outsold the PS3 only slightly during 2008. Once the PS3 drops to $299/299EUR, Sony's market share will go right back up.
Microsoft is the company which should be worried. Their monopoly days are drawing to a close, so they can't keep losing billions of dollars on hardware, and they have no answer to BluRay.