Perhaps because of this Bill Gates quote? "There are no significant bugs in our released software that any significant number of users want fixed. … I'm saying

Perhaps because of this Bill Gates quote? "There are no significant bugs in our released software that any significant number of users want fixed. … I'm saying we don't do a new version to fix bugs. We don't. Not enough people would buy it. You can take a hundred people using Microsoft Word. Call them up and say 'Would you buy a new version because of bugs?' You won't get a single person to say they'd buy a new version because of bugs. We'd never be able to sell a release on that basis."