Just received a letter from Charter this week:
"In order to continue to provide you with the best possible service, we are increasing the price of your modem lease by 2.00 from $3.00/month to $5.00 month."
I called, and asked them to justify the model lease increase. They told me increased costs. I said "Oh, you mean, I've leased it for 3 years now, and suddenly, the manufacturer came back to you and said "Hey, we need to charge you an extra 100.00 for that modem you bought 3 years ago?". The rep could not explain why.
It's just a way to fleece existing customers, nothing more.