What if the price went up by 25% a week after you initially purchased a subscription (even if it has been years since the last time the price changed)? You coul

What if the price went up by 25% a week after you initially purchased a subscription (even if it has been years since the last time the price changed)? You could do something like only change the price for customers that have been customers for a long time. But that gets complicated, and then you are punishing your best customers for their loyalty.