You don't have to buy D&D.
Thanks to the OGL, you can make your own company, using a credit card, and build your own RPG empire using the same set of basic rules.
Concepts:
Next Edition- Make 4th edition before WotC does! I'm not talking "little fixes", I'm talking making a better RPG.
MMORPG/tabletop compatable- A computer game where you can freely exchange your online character at the tabletop and back again. It can be done. Imagine printing out your WoW character, playing a session with your pals, then go to the computer with unique codes that tell the computer what happened to you during the session (like an RPGA AR.)
If you do it right, you can buy the D&D brand as an afterthought.
Having said that, I've had the same fantasy of winning the lottery and purchasing D&D. Monte Cook talked once about D&D being its own company, and it is an interesting idea. If D&D was "free" of Hasbro (which means it now has to pay for services Hasbro provides, like legal, and doesn't get innovations Hasbro provides, which lead to the "special recipe" for D&D miniatures) what would it do differently?
Here would be my plan.
Buy D&D
Buy Atari or other video game manufacturer
Buy rpgnow.com
Buy my own printer
Buy Paizo
Buy digital and media rights back
Then make 4th edition
Make an OGL, everything official is updated to the OGL after a year (or whatever the sales window is) Anything printed with OGL MUST be printed by my printer, or be sold via my online presence (rpgnow or Paizo). In other words, you can make it, but I get to sell it or print it.
Make a compatible computer game, one that kicks boo-tay over the competition.
With the success of the computer game, make a TV series and finally a movie on D&D brands.
Yes, there will be an anti-trust suit. That is what lawyers are for.