Worse, free ad-supported tiers seem like they may be more profitable for them, so there's incentive to raise prices more to see if that can push more people to their free tiers.
Between amazon's increasingly limited and ad filled video service, their inability to deliver packages when they say they will, the total lack of quality control in what they sell/ship, and the fact that I'm finding more items that don't even have "free" shipping with prime, I'm about ready to cancel.