Answer:
would accept the offer
Explanation:
Yes, this appears to be a cost-effective decision because the fact is that, I have been spending for years with this particular e-book website and by offering me a "free" subscription for a few months gives me ample time to adjust to the new subscription fee. I it even caused me to earn some extra income.
It a common practice for some businesses to offer free subscription plans to all or some of their customers for a brief time period after which they will start paying.