> give away your services for cheap
I think your parent comment's view is that these go hand in hand. Sure, there are tons of bad examples of this which really do only amount to selling $1 for 90c. Sometimes, however, the point of customer acquisition isn't just so that you can switch from selling $1 for 90c to selling 90c for $1 (which won't work), but to solve your scaling problems before you try making a profit. It's easier to fix issues and deploy new or experimental technologies in a period of easy money and customers flooding your doors than it is when you're skating by on thin margins.