Watch who you're calling 'skippy', son. It was directed at the several posts on the first part of this page of people clearly admitting to abusing the system in order to get several months of updates in one, then cancel their sub. If you didn't do it, then it wasn't directed at you.
You chose to buy the books, nobody forced you. Why you did so could be for a variety of reasons. I for one, love the art in the books, which I don't get online(as least not as much of). Paying for DDI is like paying for a TV subscription, just because you don't watch channel 100, doesn't mean you should pay less for the service.
And generally speaking, getting to cherry pick your service vs packages, generally becomes more expensive.
You could likewise, just open your book and make it with pen and paper as I did for years before I signed up to DDI. 10 bucks a month for pre-filling my sheets and writing all that detail on there? that's a fair trade in my book.
Ya don't need it? Ya don't want it? Don't buy it. Sure, you'll have to make your characters the old fashioned way, but hey, you don't want to pay for the service, that's your choice.
Of course not, and even if they did, they would likely charge you such a sum as to make the $10 monthly fee look like the better deal.
How in the world is it abusing the system? It's not some loophole. It's not copying copyrighted material. WotC is well aware that someone can have access to years worth of material by purchasing a one month subscription. It's been like that from the beginning. WotC is aware of it, and their customers are aware of it. I would even say it was a selling point for the CB. Clearly, is was designed to work that way because WotC could have done it differently or changed it much sooner than now. They chose not to.