One day you find out that your parents are still paying $100/month for a 1mbps plan that doesn't even exist anymore, while they could pay $50 for 10mbps after a 2 min phone call. That's what we hate. Not everyone knows to check every couple months to verify that they're paying current prices.

This is on SaaS, so no refunds needed, just a price/plan change for the next billing cycle.