The Aptiva never managed to recapture IBM's early 1980s PC dominance from Compaq, Dell, or HP. IBM's PC Group had higher costs than its competitors which made it impossible to match them on prices. Throughout the 1990s, IBM lost the most market share in PCs during that decade compared to its rivals, and only the ThinkPad laptop remained a stronghold. Most desktop and laptop sales were with longstanding corporate customers that already used IBM mainframe computers. Despite IBM's continued decline in hardware, that was more than offset by the company shifting focus to the more lucrative e-business (integrated e-commerce and Internet technology solutions). By 2005, IBM had sold the Personal Computing Division to Lenovo.