When you say they "penalize" old customers, that leads one to believe new customers can get the item at a lower price than old customers. This is not the case. They pay the same price as you. You want to add a device, you have to add it at the price CURRENTLY in effect.

They are "rewarding" you by allowing you to keep your old plan for as long as you would like. Anything additional, you have to pay the CURRENT prices. That is not "penalizing" you. Forcing you to go off your old plan would be "penalizing" you. Going off your old plan is a choice you either make or don't make. You want the newer capabilities, pay the newer prices. You want the older prices, you are stuck with the capabilities available when those prices were available.

It seems the one to be mad at here would be Samsung. They are the one which incorporated a direct cell link into the watch, NOT VERIZON. If the watch didn't require you to have a cell plan, but only a bluetooth connection as other smartwatches, you would not be in this predicament. Possibly Samsung will realize people do not want to increase their cellular bill when purchasing a smartwatch and offer a version without cellular built in.