Doesn't this assume users have no choice? If a better map product came along, couldn't they also make it free (to compete with Google's future raised prices) an

Doesn't this assume users have no choice? If a better map product came along, couldn't they also make it free (to compete with Google's future raised prices) and then when Google is bankrupt, raise the price? Isn't this totally ignoring the business model and claiming a monopoly on price alone? What's the barrier to entry? Is Google blocking competing map provider's search results?