The lack of CD drive has several not very difficult solutions: Get a USB CD drive, use your old computer or a friend's computer make a dmg out of the CD, etc.

It's about the principle. I'm not saying that the problem has no solution, I can convert the files using someone else's computer as you are saying. Why should I get a USB CD drive that I will use only to convert documents that I expect to be readable anyways? Why should I spend time looking for someone with iWork'09 installation and use their time to convert my documents? It is just unacceptable from a company that is proud for user experience of its products. I should be able to do that from my chair, legally, with a download of a conversion tool or with an upload to a conversion service from Apple, not a third-party.

I would not mind buying a floppy drive and all necessary adapters, install Atari ST emulator and write Kamenicky encoding converter in Python to convert 1st World Plus documents from '89 if I had to convert documents of my parents. I would not be complaining about obsolescence of the format at all.

My problem is not technical, it is about user experience and productivity.

You have a cd and (I assume) associated key for a product. The only thing that seems nuts to me is that you can't just download it from apple using said key.